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DIY Science 30mm toy wheel plastic 2*30 simulation wheels technology making science and education model DIY toy accessories
Size: 30mm x 9mm wheel
Hole mount size: 1.95mm suitable for 2mm rod
Material: Plastic
Left+Right 95mm Mecanum wheel omnidirectional universal tyre smart car robot tir
5V 220RPM Full metal gear motor GA12-N20 waterproof motor 3V to 9V
MSI brushless small fan graphics card fan transparent
21mm pulley small wheel rubber tire plastic tyre robot science education toy acc
N20 DC3-6V 50RPM metal gear motor high torque
75mm Robot climbing car tire tyre wheel hollow good elasticity DIY toy chassis accesso
WS2812 RGB LED Breakout board module
Ultrasonic HC-SR04 Mount Holder ping sensor bracket
stethoscope school experimental science kit doctor STEM DIY