If air leaks or tire punctures, you can use the polishing pad to wipe the tire surface.Apply patch after simple treatment and press for 1-2 minutes to complete the patch.The multi-functional 20-in-1 multi-tool allows you to adjust the saddle to maintain any parts from brake, derailleur, around the steering wheel.Tire repair tool for mountain bike, road bike, dirt bike.Use the tire lever to repair the surface of the inner tube or check if the inner tube is damaged.