4512 Robot Car Wheel for BO Motors Plastic Tracked Wheel with a 6 mm bore diameter of high quality. 12mm Tyre width with rubber liner for more strength. With upgraded tyre tread for greater friction New design wheel for better combination with the motor The material of Wheel: High-strength plastic The material of Tyre: Rubber Bore Diameter: 6mm Tyre Width: 12mm Material of Wheel: High-strength plastic Material of Tyre: Rubber Wheel Diameter: 45mm (Approx.)
