feature: 100% brand new and high quality Made of high-quality rubber, it has the characteristics of high temperature resistance, high hardness and high wear resistance. Long service life, can be repaired once, no need for secondary maintenance. The inner diameter is less than 5mm, no damage to the tire and no air leakage. Simply insert a nail into the tire wound to complete a simple and efficient tire repair. The small size can make up the gap of 0.1-3mm; the large size can make up the gap of 3-5mm. This tire repair stud is easy to install, you can repair the tire yourself, no need to go to an auto repair shop, it is economical and time-saving, the tire is repaired quickly, and there is no need to remove the tire. Even girls can use it easily. It fits tightly to the tire, with high connection strength and good sealing performance, preventing water from entering the wound, so the steel belt will not rust or delaminate. Professional piercing repair nails for car, motorcycle, truck, bus, agricultural tires. The package includes: Package A includes: 10x Car tire puncture spikes (S size) Package B includes: 10x Car tire puncture spikes (L size) Specification: Material: rubber + aluminum alloy Size S: Approx. 5.3x11.7mm/0.21x0.46in L size: about 6.8x12.7mm/0.27x0.50in