How to Use The tire is divided into three parts: the tire groove from the crown to the tire side. Repair method of tire groove crack: screw the patch nail into 0.5mm below the tire groove plane; Repair method for the crack in the tire crown: screw the patch nail into the tire groove level; The repair method of the sidewall crack position: screw in the tyre repair nail, 0.5mm below the sidewall plane; Oblique repair of puncture objects: tighten the repair along the direction of the breach. Read more Auto Motorcycle Vacuum Tire Repair Rubber Nail Fast Tool Self-Service Tire Repair Nail Easy To Operate Easy to install with this tire repair nail, you can repair your tire by yourself, do not find the auto repair shop, economical and time-saving. Perfect Sealing Effect Tire Repair Rubber Nail adheres firmly to the tire, high connection strength, good sealing performance prevents water from entering the wound, so the steel belt will not rust or delamination. Wide Application Professional puncture repair nail, can be used on car, motorcycle truck bus and agricultural tires. Read more Lossless & Efficient The inside diameter less than 5 mm, no damage to tires, no air leakage. Simply insert the nail into the tire wound to complete simple and efficient tire repair work. Precautions: The tire tread has no tread pattern or the tire is seriously aging. Please use other methods to repair it. It is recommended to replace the tire for your safety. Details: The small size can make up the of 0.1-3mm; the large size can make up the of 3-5mm. Read more