50-100 usd

  Singing Tesla Coil Music Kit Plasma Loudspeaker Wireless Transmission Experiment Desktop Toy Model - Enginediy Musical Tesla Coil (also known as...

Microcosm T1B Mini Steam Engine Full Metal Hero Of Alexandria Live Steam Engine Model - Enginediy An aeolipile (or aeolipyle, or eolipile), also...

Stirling Engine Model Hot Air Stirling Engine Electricity Generator with Colorful LED - Enginediy The Stirling engine is mainly constructed by meta...

Vinyl Record Shape Bluetooth Music Tesla Coil with Long Arc and Bluetooth Music Dual Mode - US Plug Features: .Adopt a newly designed PCB circui...

Low Temperature Stirling Engine Stainless Steel Engine Model Toy for Developing Intelligence The low temperature Stirling engine is designed wi...

DIY Assembly Steam Engine Kit Model Science Experiment with Electric GeneratorThe steam engine is more maneuverable and functional, compared with s...

在 Instagram 查看这篇帖子 physicsfun (@physicsfun) 分享的帖子 Musical Tesla Coil Plasma Horn Electronic Science Technolog...

3D Puzzle DIY Model Kit Jigsaw Metal Scorpion King Mechanical Assembly Crafts-200PCS+More Details:Design Story: We have been figuring out how to m...

3D Puzzle DIY Model Kit Detachable Jigsaw Scorpion Metal Games Features:   .With high-quality metal materials and laser-cut ultra-precision high-q...

Features: .Made of high-quality metal, laser cutting ultra-precision high-quality metal models, you can create a model larger than your palm .No n...

DIY Model Kit  for Kids, Teens and Adults, Inspired By Elk- Enginediy Customized Features:   .With high-quality metal materials and laser-cut ultra...

2 In 1 Multifunction Bluetooth Square Wave Music Tesla Coil Scientific Experiment Toy with 25cm Artificial Lightning Features: .Desktop integrated...

SGTC Length 10CM Tesla Coil Artificial Lightning Magnetic Storm Coil Wireless Lighting Technology Experimental Teaching Aids Arc Features:Arc Effec...

Handheld Electric Arc Music Tesla Coil High Frequency High Voltage Generator with 48V2A Power Supply Features: .Using a newly designed PCB circui...

Stirling Engine 2 Cylinder Stirling Engine Model with Electricity Generator Science Toy The Stirling engine kit is powered by the expansion of the...

Stirling Engine Car Model DIY Stirling Engine Vehicle Kit Toy Engine The Stirling engine kit is with car design, the base-plate is made of hard sol...

Vacuum Engine Flame-licker Engine Flame-eater Engine Model Kit Educational Toy Key Points: - The bottom plate was finely polished and painted.- T...

Microcosm M88 Mini Steam Engine Full Metal Live Steam Engine Model Kit Creative Gift Set A steam engine is a heat engine that performs mechanical w...

Mini Steam Engine Single Cylinder Live Steam Engine Model Kit Creative Gift Set A steam engine is a heat engine that performs mechanical work using...

KACIO Mini Live Steam Engine Model Single Cylinder Swing Steam Engine with Boiler A steam engine is a heat engine that performs mechanical work us...

Steam Engine Model Kit Full Metal Steam Generator Heating Boiler Engine with 4 Alcohol Lamps Steam engine kit full metal steam generator heating bo...

3D Metal Craft Puzzle Mechanical Spaceman Series Astronaut Kit CNSA RKA DIY Assembly for Home Decor Creative Gift-154PCS Features:.3D Puzzle Colle...

3D Puzzle Model Kit Spider Shaped Mechanical Clock Model  Creative Gift Features: .With high-quality metal materials and laser-cut ultra-precisio...

3D Metal Ant Model Kits, DIY Metal Puzzle, Assemble Model Jigsaw Kits-100 PCS Features:.DIY metal ant model is made of high-quality stainless steel...

V4 Engine Model Kit - Build Your Own V4 Engine - Science Experiment STEM Toy - EnginediyThe V4 engine is a four-cylinder piston engine where the cy...

Smithsonian Jet Works Advanced Science Kit - Build Your Own Jet Engine  Features: .Build your own Aviation turbojet engine with a number of parts,...

Smithsonian Motor Works Advanced Science Kit - Build Your Own 4 Cylinder Engine Model Kit Features: .Build your own car engine with a number of pa...

ENJOMOR DIY Stirling Engine Model Kit - Metal Balance Hot Air Stirling Engine Model Educational ToyFeatures:.Creative Design: Different from the no...

ENJOMOR Flame Eater Vacuum Stirling Engine External Combustion Engine Thermal Engine Science Education Toy Gift Collection - Enginediy A vacuum e...

Stirling Engine L-Shape Two Cylinder Stirling Engine with Big BulbStirling engine are powered by gases that expand when heated and contract when co...

Features: .Innovative Design: This product is a spare part and requires DIY assembly, complete spare parts, simple structure and easy assembly. Th...