Features: brand new and high quality Made of high-quality rubber, it has the characteristics of high temperature resistance, high hardness and high wear resistance. It has a long service life, it can be repaired once, no second repair is required. The inner diameter is less than 5mm, does not damage the tire, and does not leak air. Simply insert the nail into the tire wound to complete simple and efficient tire repair work. Small size can make up the gaps of 0.1-3mm; large size can make up the gaps of 3-5mm. It is easy to install with this tyre repair nail, you can repair your tyre by yourself, no need to find an auto repair shop, economical and time-saving, quick repair, no need to remove the tyre. Even girls can use it easily. It fits closely with the tire, has high connection strength, good sealing performance, and prevents water from entering the wound, so the steel belt will not rust or delamination. Professional piercing repair nails, which can be used for automobiles, motorcycles, trucks, buses, and agricultural tires. Specifications: Material: Rubber Size S: Approx.5.3x11.7mm/0.21x0.46in(Can be used to repair wounds within 0.1-3mm) Size L: Approx.6.8x12.7mm/0.27x0.50in(Can be used to repair wounds within 3-5mm) Package Includes: 10x Car Tire Puncture Nails(Size S) 10x Car Tire Puncture Nails(Size L) note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.