Mini Round Double-Deck Smart Robot Car Chassis DIY Kit.
2 drive smart car chassis, can be used as tracking, searching light, obstacle avoidance, fire fighting, and other remote control car.
Reserve interface for tracking module, driver module, obstacle avoidance module.
Outline Size (W x H): 140 x 80mm/5.51 x 3.2 inch.
Classis Material: Acrylic.