Durable Vehicles Off-Road Wheel Tires 12mm Tire Snow Chains Spikes Studs. The new style screw-in tire studs can be easily installed and removed. They can also be disassembled as needed. When not in use, they can be lightly removed and stored for future use. Select the appropriate size of new studs based on the depth of the tire tread during installation. Easy to install and remove – takes less than 1 hour with simple hand tools. Economical solution to add off-road capability to your standard ATV, UTV or similar vehicle. Low ground pressure design with minimal environmental impact. Durable construction engineered for long-lasting performance. Versatile all-terrain capability in various conditions. Type: Tire Stud Screws Item Size: 10 x 8mm / 0.39 x 0.31 inch Color: Silver Material: Metal Package Contents: 100 x Tire Stud Screws Note: Only the items listed above are included. Light reflection and differences in display screens may cause slight variations in color compared to the actual product. Measurement error allowed is +/- 1-3cm.