YiTao (TM) Tire Tyre 8080170mm/300mL Tyre/Tire Design Coffee Tea Mug, Stainless Steel Interior, Plastic Exterior Designed after the classic car tires Insulating structure, stainless steel interior, plastic exterior Mug extends or retracts like a real Tyre when the zoom ring rotates Volume: 10.15 ounces, not microwave safe, not dishwasher safe Lid designed after the car tires