50-100 usd

SUBOTECH BG1511 1:22 2.4G Electric RC Car 4 x 4 45KM/H High Speed Desert Off-road Vehicle with Lights and Spare Tire - RTR VersionFeatures:Exquisit...

Tesla Coil Mini 5cm Artificial Lightning Maker Science Model  Educational Toys - Enginediy Features:.The heat dissipation adopts a radiator with a ...

Spark Gap Lightning Simulator High Frequency AC Wireless Transmission Tesla Coil with 15cm Arc Features: .The machine is simple to install and no...

Wireless Power Transmission Music Tesla Coil Plasma Speaker Features: .Made of a newly designed PCB circuit board. The circuit design is reasonab...

Hand Crank AC/DC Generator Electromagnetics Scientific Tool Educational Toy Features: .Mainly composed of stator, rotor, brush, rotating mechanis...

Bluetooth Music Tesla Coil Plasma Speaker Scientific Experiments Tool Educational Toy with AC100-240V Adapter - US Plug (Blue) Features: .Adopt t...

Stirling Engine Tank Model Stirling Engine Motor Model Physical Experiment Science Education Toy Gift - EnginediyFeatures:Unique Tank Shape: Creati...

DIY Model Kit  for Kids, Teens and Adults, Inspired By Dynastes - Enginediy Customized Features: .Made of high-quality laser cuting ultra-precise ...

Exhaust Pipe for BAJA 71cc Gasoline Engine Features: .1/5 model car exhaust pipe .Suitable for BAJA 71cc gasoline engine Specifications: .Color: A...

Exhaust Pipe for LT 71cc Gasoline EngineFeatures:1/5 model car exhaust pipeSuitable for LT 71cc gasoline engineSpecifications:.Color: As Shown.Mate...

Features: .The maglev solar motor with creative design highlights fashion and taste .The structure with double aluminum shafts is tight and firm ....

Features: .This product mainly studies the effect of cyclic acceleration in orbit.The more coils you have, the faster you accelerate, each coil is...

Exquisite Appearence: The all-metal stirling engine model looks cool and high end. Exquisite appearance with brilliant colors, not easy to rust and...

   Four-Stroke Gasoline Engine Model Four-Strokes : 1, Suction stroke: The intake valve is opened, the exhaust valve is closed, and the piston mov...

Stirling Engine Kit L-shape Stirling Engine Generator with LED Light External Combustion Engine Toy The L-shape Stirling engine is an amazing conve...

  Key Points:1, With generator, 1 LED lights, the baseplate is made of hard solid wood, exquisite atmosphere. The bracket is made of zinc alloy ma...

3D Metal Craft Puzzle Mechanical Robot Watch Stand Timer Display Model DIY Assembly Chronos Watch Bracket Creative Gift Features: . Using high-qual...

High-precision Mechanical Adjustable Torque Wrench Set DIY Tools Kit - 14PcsFeatures:.Exquisite Design: The convenient, smart and labor-saving prec...

Double-E SSTC Mini Music Tesla Coil with Dual Power Supply Features:Bluetooth Music Tesla Coil:.Able to connect the mobile phone with Bluetooth to ...

Steampunk 3D Butterfly Model Metal Puzzle DIY Assembly Kit for Kids, Teens and Adults (150PCS+) - Cethosia Bibles Drury Features:.The wear-resistan...

Mini Stirling Engine Model with Horizontal Flywheel What is a Stirling cycle engine?A Stirling cycle engine is a closed cycle regenerative heat eng...

Steampunk Peacock Butterfly Model Kit with Base and Replacement Wings Anartia AmatheaBrown peacock, is a species of nymphalid butterfly, found prim...

ENJOMOR Mini Alpha Rocker Arm Connecting Rod Stirling Engine Model Science Education Toy Enthusiast GiftFeatures:Science Educational Toys: The Stir...

4-in-1 CDI Igniter Module for CISON FL4-175 Engine Model Specifications: .Material: Electronic components + Plastic .Product Weight: 80g .Package...

627PCS Metal Steampunk Mechanical Wasp Bluetooth Speaker Assembly Model KitFeatures:Recyclable Metal Materials: Made of premium quality metal mater...

3D Metal Steampunk Galaxy Craft Puzzle Mechanical Octopus Model DIY Assembly for Home Decor Creative Gift-1060PCS Features:Recyclable Metal Materia...

Special Metal Simulation Engine Idling Smoke GeneratorFeatures:.Support 2-3S lithium battery power supply.Support CS-TK16 tank sound group, modifie...

3D Metal Puzzle Steel Commander Assembly Metal Set Excavator Model Science Education Toys-807PCS Features: . Excavator movement driven by air power...

3D Printing Walking Tractor Single Cylinder Diesel Engine Internal Combustion Engine Model with 7.2V 700mAh Battery and Charger Features:.This is a...

1521Pcs+ Space Series DIY Assembly Toy Rocket + Launch PadFeatures:Space Series Assembly Toy Set: Including rocket + launch pad. Children can incre...

Single Tube Self-excitation Tesla Coil MP3 Music Playing Coil DIY Electric Arc Shape Artificial LightningInstruction: 1. Connect the base to the ro...

1/12 2.4G RC Crawler Tank Electric 4-wheel Drive All-terrain Off-road High-speed Drift Simulation TankFeatures:All-terrain Remote Control Tank: The...

150PCS 3D Metal Kit Roman Soldier with Sword & Shield DIY KIT Music BoxFeatures:.3D Puzzle Collector or just looking for a new hobby, want to c...

209Pcs DIY Mechanical Infantry Kit 3D Assembly Metal Phone Holder Model ToyFeatures:.3D Puzzle Collector or just looking for a new hobby, want to c...

DIY Handmade Electronic 4 Insect Kits Electronic Badge Material Kit LED Lights - Dragonfly + Butterfly + Cicada + Hu Feng Features: .The electron...

DIY Handmade Electronic 4 Bees Kits Toys Glow Light Decor - Yellow + Brown + Blue + Black Features: .The electronic animal kit needs to be assemb...