Image Item No. Description  30027b  Wheel 8mm D. x 9mm for Slicks, Hole Notched for Wheels Holder Pin Catalog: Parts: Wheel  6014b  Wheel 11mm D. x 12mm, Hole Notched for Wheels Holder Pin Catalog: Parts: Wheel  42610  Wheel 11mm D. x 8mm with Center Groove Catalog: Parts: Wheel  18976  Wheel 18mm D. x 12mm with Axle Hole and Stud, Solid Brake Rotor Lines Catalog: Parts: Wheel  2593  Wheel Hard Plastic Medium (35mm D. x 31mm) Catalog: Parts: Wheel