Robust: The tire studs are made of carbon steel, aluminum, and hard alloy, making them robust, durable, and strong with fine craftsmanship, not easy to bend, rust, or corrode, so they last a long time.

Size Details: The snow spikes are approximately 12 mm/0.47 inches long and 4 mm/0.16 inches in diameter, and the tip diameter is 2.3 mm/0.09 inches, the size is very suitable for bicycles, boots, motorcycles, and more; please check the dimensional details carefully before ordering.

Practical Function: The screws in the tire studs can increase the friction between the tire surface and the ground, which improves the vehicle's stability while driving, very suitable for driving or riding on snowy roads, and the small size is also suitable for snowy areas, allowing you to climb, hike, camp without slipping and falling.

Easy and Quick to Install: The hard alloy screws are very easy to install with the included installation tool, simply place the screw on the drill with the metal sleeve and then drill the screw into the tire, convenient and time-saving.

Type: Tire Studs Screws Item size: 4x12 mm (per) Durable Vehicles Off-Road Wheel Tires 12 mm Tire Snow Chains Spikes Studs The new style screw-in tire studs can be installed and removed without disassembly. It can also be disassembled depending on the reason. When not in use, it can be easily removed and stored for future use.

Suitable size of new studs in the installation process with respect to the tire's tread depth Easy to install and remove - less than 1 hour with simple hand tools Economical - add off-road capability to your \"normal \" ATV, UTV or Color: silver Material: metal Package contents: 100 * Tire Studs Screws 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 to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.~~haha1115