Tire and Wheel in the Tire and Wheel sub-category in the Fleet and Vehicle Maintenance category from GoVets is the perfect place to find the products you need to complete or work on your project. Inner tubes and reliners are used to repair and maintain tires and wheels. Inner tubes are made of rubber and are inserted into the tire to hold air pressure. Reliners are used to repair the inner tube and are made of a rubber-like material. Shop today to find the right inner tubes and reliners for your project.