Describe: Made of hard alloy, super durable. Easy to install, with a certain drill bit, it can fit well with car tires. It can be gently removed and stored for use. Low ground pressure, environmentally friendly and minimal impact. It can be installed on the sole to prevent slipping when walking on ice. Suitable for most tires, increase friction for , trucks, motorcycles, etc., and enhance capabilities. Specification: Type:Tire Stud Screws Size: about 4x12mm Application: trucks, motorcycles, off-road vehicles, shoe soles, etc. Practical function: the screw in tire studs can increase the friction between the tire surface and the ground, so as to improve the stability of the vehicle in the process of running, very suitable for driving or riding on snowy days, and the small size is also applicable for snow boots, allowing you to go climbing, hiking, camping without sliding and falling easily The new style screw in tire studs can be easily installed and removed without tools It can also be disassembled according to the reason, When not in use, it could be removed lightly and stored for using again in following season. Choose appropriate size of new studs in the installation process in terms of the depth of tire thread Easy to install and remove - less than 1 hour with simple hand tools Economic - add off-road capability to your"normal" ATV,UTV or Color: silver material: metal Package Contents: 200 x Tire Stud Screws 1 x Wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.