DOIT 2pcs Metal Driving Wheel for Robot Tank Car Chassis, Action Wheel by Caterpillar Remote Control Toys Drive DIY toys kids Waiting to enter the distribution

Waiting to enter the distribution network interface

the battery will not be damaged at the same time can safely return

5V AA(Not included)

Width: 42mm/1

DOIT 2pcs Metal Driving Wheel for Robot Tank Car Chassis, Action Wheel by Caterpillar Remote Control Toys Drive DIY toys kids Waiting to enter the distributionThe metal bearing wheel is made by aluminum alloy. It has two colors: silver and golden yellow. By using it, can conveniently install your loved tank chassis. Silver 4mm: means the color for the wheel is silver, and the inner size for the coupling of the wheel is 4mm to connect the motor. Silver 5mm: means the color for the wheel is silver, and the inner size for the coupling of the wheel is 5mm to connect the motor. Silver 6mm: means the color for