Tachiuwa Mini Hot Educational Toy Engine Model Kits
Great for cultivating students' interest in physics, more intuitive and easy to understand how engergy is converted into mechanical work..
Hot air stirling engine motor model kit physics teaching aids educational toys.
A stirling engine is a engine that operated by cyclic compression and expansion of air or other gas at different temperatures, such that there will be a net conversion of energy to mechanical work..
Burnning the alcohol lamp for a while, the expansion of air in the tube will work as a medium to run the pistons and flywheel, then the expanding air will be cooled in cold chamber. As this process will be repeatedly circulating, the flywheel will continuously work..
The hotter the tube gets, the faster the flywheel goes. Very interesting!.
Ipienlee 4 Pieces 2.0 mm Metal Mechanical Pencil with 4 Cases Lead Refills, Color and Black Refills for Draft Drawing, Writing, Crafting, Art Sketching
Mechanical pencil set: contains 4 pieces 2.0 mm HB mechanical pencils (black and blue).
2 tube of black lead refills, 2 tube of colored lead refills (Refill: 12 pieces per tube).
Smooth and long-lasting: strengthened lead and inner structure guarantee you a steady performance for sketching, drawing, test, carpenter or crafting.
Multiple functions: with a sharpener in the cap of automatic pencil, you can sharpen the lead refills easily and conveniently to use at office, school or workshop.
Comfortable writing experience: Metal barrel with easy to grip body make sure you can handle with any situation.
Pencil tip is long enough to prevents from breaking.
Size: Pencil lenght about 14.5cm (5.7inch), 2.0mm HB lead refilll about 9cm (3.54inch).
30 Pcs Cute Mechanical Pencil Set 0.5 mm Pink Cherry Aesthetic Pastel Automatic Lead Pencils with HB Pencil Refill and Erasers for Writing Drawing Sketching Architecture Office School Supplies
Package Include: 6pcs x 0.5 mm mechanical pencils (blue, pink & white) + 6 tube x 0.5 HB lead refills+ 6 large erasers+ 6 ballpoint pen+ 6 pcs super "kawaii" pink cherry stationery bags. WHAT AMAZING！because you can divide it into 6 sets to share with you friends and family..
Simple and Easy to Carry: The mechanical pencil set is printed with beautiful cherry blossoms in pink, blue and white tones, which looks delicate and charming, suitable for girls and women. the mechanical pencil clip design can be clipped on books or your pocket and take it everywhere you go.
Beautiful Design Pencils: Cute, stylish, cute, fine-tipped pencil set with super smooth writing, the retractable pen will make you fall in love with writing, write smoothly.mechanical pencil set can be applied for writing, drawing, drafting, signature art projects and so on.
Smooth and Legibly Writing with Eraser: Our mechanical pencil tip comes with considerate design, which features a small metal tube so as to protect refill from easy breaking , plastic pen barrel provides good balance of weight and non slip grip for smooth writing experience，at the top of the button attached with an eraser，easy and convenient to wipe writing errors, saving your energy and time.
Nicpro 2 PCS 0.5 mm Metal Mechanical Pencils Set, Drafting Pencil for Artist Writing, Sketching, Drawing, with 4 Tubes HB Lead Refill & Erasers, Erasers Refills & Storage Case
Package Contains: 2 pcs of 0.5 mm mechanical pencils with 4 tube of HB pencil lead, 2 pcs 4B-soft erasers, 9 pcs mini cap eraser refills in a storage case.
Metal Anti-skidding pen tube. The lead advances easily at the touch of a click. It is hard to be broken and drop resistant..
The full-metal body provides ideal weight balance for fatigue-free writing and drawing. It brings you more effective and high quality tasks.
Drafting pencil lead works with mechanical pencil with no need to sharpen, very convenient. Ideals for artists, professionals, teachers and students alike. Perfect for writing, draft, drawing, sketch..
100% RISK FREE PURCHASE: If you are not satisfied with Nicpro mechanical pencil set , we’re very happy to either provide a Refund or Replacement. Order today risk free!.
Pentel® Twist-Erase® III Mechanical Pencils, 0.9 mm, Assorted Barrel Colors, Pack Of 2 Pencils
Assorted styles: as picture show , the pens mechanical pencils has a ssorted with 30 styles ,cute cartoon and Kawaii, adorable pens bring you more fun, let you enjoy the period of writing.
Package includes: you will receive 30 pieces mechanical pencils, and 30 tube Lead Refills ,enough stationary to satisfy daily writing for quite a long time.
Quality material: these mechanical pencils shell is made of quality plastic shell and line size is 0.7mm or 0.5mm, meet different occasions needs.
Wide application: mechanical pencil set can be applied for writing, crafting, drawing, drafting and fit for office, school, home and daily usage and best gift for kids and students.
Size information: each mechanical pencil is in different length of around 15-20 cm/ 6-8 inches, lightweight and portable, easy for you to carry.
Scriveiner Silver Chrome Mechanical Pencil - Stunning Luxury Pencil, 24K Gold Finish, Schmidt 0.7mm Mechanism, Spare Leads, Best Gift Set for Men & Women, Professional, Executive, Office Pencils
Package contains: 2 pcs of 0.7 mm mechanical pencils with 4 tube of HB pencil lead, 2 pcs 4B-soft erasers, 9 pcs mini cap eraser refills in a storage case.
Metal Threaded Anti-skidding pen tube. The lead advances easily at the touch of a click. It is hard to be broken and drop resistant..
The full-metal body provides ideal weight balance for fatigue-free writing and drawing. It brings you more effective and high quality tasks.
Drafting pencil lead works with mechanical pencil with no need to sharpen, very convenient. Ideals for artists, professionals, teachers and students alike. Perfect for writing, draft, drawing, sketch..
100% RISK FREE PURCHASE: If you are not satisfied with Nicpro mechanical pencil set , we’re very happy to either provide a Refund or Replacement. Order today risk free!.
Autism Sensory Toys,New(4Pcs) pop Tubes, Fidget Toys for Kids Girls,Toddler Toys Age 2-4,Kids Toys,Girls Toys,Sensory Fidget Toys,Sensory Toys for Kids 5-7,Dog Party Favors,Fidget Tubes,Sensory Tubes
【Fidget toys for kids】Consists of a tube and a mechanical body, the dog has mechanical legs for more fun! Can be disassembled and assembled and easier to stand firm, the head and tail can be rotated, the tube can be popped and stretched with a crisp sound when stretched, 4 different color combinations, suitable for children's parties from 4-8 years old..
【Creative design】pop tubes fidget toys it can change various shapes, giving your little ones freedom to explore designs,，The cute animal body wraps both ends of the tube, which is not only beautiful, but also ensures the safety of children，party favors for kids 3-5，（Be careful that the mechanical leg is not disassembled and put into the mouth by the children）.
【High Quality 】animal Pop Tubes Toys is made of high-quality plastic and Meets U.S. safety standards, Pop tube are durable, thick, flexible and can withstand a lot of fidgeting, popping, stretching, pulling and bending,Sufficient toughness and durability，summer party favors for kids.
【AMAZING GIFT 】kids toys,Valentines, Easter， cool party favors for kids? Spread the joy.
Make someone's day with these stress relief good luck charms! Pop tubes make top notch party favor goody bags, pinata fillers, white elephant gifts,....
BAZIC 20 Ct. Mechanical Pencil Leads. 0.7 mm Lead Refill for Automatic Pencils (8/pack)
⭐ 0.7 MM LEAD REFILL. Everything is simple with mechanical pencil lead. Each pack comes with 8 tubes of 0.7mm mechanical pencil refills, 20 pieces per tube. Works with any 0.7mm mechanical pencils..
⭐ AVAILABLE IN. Our mechanical pencil leads are available in 0.5 mm, 0.7 mm and 0.9 mm lead, which provides the users with the choice of the leads that matches exactly with their requirements..
⭐ ECONOMY. The pencil leads are HB hardness lead is equivalent to a #2 wooden pencil. Therefore, these leads are perfectly suitable for various types of needs..
⭐ PHENOMENAL WRITING. The mechanical pencil leads produces smooth, crisp lines with dark imprint which makes it extremely easy to read. Leads don't break easily thereby making it ideal for a long time use..
⭐ WIDE APPLICATION. Suitable for all general writing applications such as notes, letters, and you can use it for office, classroom, home and other occasions..
Rite in the Rain YE13 Mechanical Clicker Pencil SET, 1 YE13 Pencil, 12 Replacement Erasers, 6 Replacement Leads (Yellow Pencil)
The combo set includes 1 YE-13 Mechanical Pencil, 6 replacement erasers, 12 replacement leads.
MECHANICAL PENCIL: The wide knurled grip offers wet or dry glove-friendly handling on the job site. STRONG BARREL: Durable resin and metal barrel survives through the toughest conditions. LEAD: The dark 1.3mm lead won’t snap at the tip or break in the shaft..
ERASE WITH CONFIDENCE: The specially formulated eraser removes marks while not chewing on paper. Storage: 6 additional erasers included per package. Compatibility: The eraser refill fits all pencils from the Rite in the Rain 13 series. The whole unit: the eraser refills come with the eraser pre-fixed to the holder for each unit. Practical tube: The erasers come in a sturdy kraft tube for safe storage..
Thick cable: The dark 0.051 in cable doesn't break easily at the tip or break at the shaft. LASTS LONGER: The lead is 4.724 in long, the full length of the pen barrel. Compatible cable: The lead refill fits all pencils from the Rite in the Rain 13 series. Value: The replacement package comes with 12 full-size cables (4.724 in). Lumbar brand: the strong 2B cable (dark) marks on all types of materials. Practical tube: The straps come in a sturdy kraft tube for safe storage..
