Made of hard alloy for super durability. Easy to install with a standard drill bit, designed to fit most car tires. Can be gently removed and stored for future use. Features low ground pressure, environmentally friendly design with minimal impact. Can be installed on shoe soles to prevent slipping on ice. Suitable for various tires, including those on trucks, motorcycles, and off-road vehicles, to increase friction and enhance traction. Type: Tire Stud Screws Size: Approximately 4x12mm Application: Trucks, motorcycles, off-road vehicles, shoe soles, and similar uses Practical function: Screw-in tire studs improve friction between the tire and ground surface, enhancing vehicle stability during operation. Ideal for driving or riding in snowy conditions. Compact size also makes them suitable for snow boots, supporting activities such as climbing, hiking, and camping with reduced risk of slipping. New-style screw-in tire studs allow tool-free installation and removal. Can be disassembled when not in use and conveniently stored for reuse in subsequent seasons. Choose the appropriate stud size based on tire tread depth during installation. Installation and removal can be completed in under one hour using basic hand tools. Economically enhances off-road performance for standard ATVs, UTVs, and similar vehicles. Color: Silver Material: Metal Package Contents: 200 x Tire Stud Screws 1 x Wrench Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement allowance is +/- 1-3cm.