ITEM NAME:1:48 Pneumatic Tire Wheel with DC 3-6V Gear Motor for Arduino Smart Car Rob A1O3 1:48 Pneumatic Tire Wheel with DC 3-6V Gear Motor for Arduino Smart Car Rob A1O3 Model: HC02-48 Type: Dual Shaft Ratio Reduction: 1:48 Motor Rate voltage: DC 3-6V Material: plastic Net weight: 74g Main color: Yellow, Black Wheel diameter: 70mm / 2.76 inch Thickness of the wheel: 26.5mm / 1 inch Engine size: 70 x 36.5 x 24.5mm / 2.8 x 1.4 x 1 inch (L x W x H). Package Contents: 1 x Wheel Tire 1 x DC Motor Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm.