brand new and high quality Features: Light weight and ultra thin, easy to carry and prepare for emergency need while riding. High quality rubber, right price. How to use: 1. Find out the specific location of the tire leakage (with the gas cylinder to the tire RBI gas, then the tire into the water can diffuse through the tire can be, there is a bubble that is the specific location of leakage). 2. Friction and clean the file with a flat tire, the friction area than the tread sheet slightly larger. 3. Clean friction tire debris, the glue applied to rub this plane, the tires off the tires, paste to the tread surface, smooth, and then gently beat a few tires on the film. 4. Wait 30 seconds before putting the inner tube into the tire and re-inflating. Specifications: Materia:Rubber Size:diameter:30mm Color:Black Quantity: 10 pcs Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes( without retail package): 10pcs * Rubber Tire Tyre repair (other accessories demo in the picture is not included)