Image Item No. Description  4265cc01 (Inv)  Technic Bush 1/2 Smooth with Black Tire 14mm D. x 4mm Smooth Small Single with Number Embossed on Side (4265c / 59895) Catalog: Parts: Wheel & Tire Assembly  4624c01 (Inv)  Wheel 8mm D. x 6mm with Black Tire 14mm D. x 4mm Smooth Small Single (4624 / 3139) Catalog: Parts: Wheel & Tire Assembly