Made of hard alloy, super durable. Easy to install; compatible with a suitable drill bit for secure fitment on car tires. Can be gently removed and stored for future use. Low ground pressure design, environmentally friendly with minimal impact. Can be installed on shoe soles to prevent slipping on ice. Suitable for most tires, increases friction for trucks, motorcycles, off-road vehicles, and enhances traction performance. 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 tire surface and ground, enhancing vehicle stability during operation. Ideal for driving or riding in snowy conditions. Small size also suitable for snow boots, providing secure footing during climbing, hiking, or camping without slipping. New style screw-in tire studs allow for easy installation and removal without tools. Can be disassembled as needed and removed when not in use for storage and reuse in future seasons. Select appropriate stud size based on tire tread depth during installation. Easy to install and remove—takes less than one hour using basic hand tools. Cost-effective way to enhance off-road capability for standard ATVs, UTVs, or 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 may vary by up to +/- 1-3cm.