Features: brand new and high quality Driverless is now very popular. Based on this car chassis, you can know many AI knowledge, such as machine learning, ROS, deep learning, reinfored learning, and other robotics knowledege. Equipped with anti-collision tires, worry-free playing indoors and outdoors. Made of environmentally friendly ABS plastic, it is characterized by a cool body design and a bright surface. No matter what country, beach, grass or stairs, you can easily conquer. The car chassis is acrylic, and the bearing wheels and driving wheels is premuim plastic, together with the track. The track length can be changed randomly with the tools. The tracked chassis is unassembled, you need to get it done by yourself and enjoy the fun of DIY. When you want to do some robot model function realization. This for smart car chassis is very suitable for you. Specifications: Material:Acrylic Size:Approx.20X26X6.5cm/7.87x10.24x2.56in Color:Transparent Load: 2KG Motor Model: 33GB520 Motor Voltage: 9 to 12V (More Than 300 Revolutions Per Minute at 12V) Package Includes: 1 Set for Tank Robot Chassis(Need to Assemble by Yourself) note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.