Description: It brings a good anti-slip property for your tires. Made of hard metal, strong and durable in use. Easy to install with certain drill and can match well with your vehicle tires Suitable for Auto, Car, Truck, Forklift and so on. Note: Please choose appropriate size of new studs in the installation process in terms of the depth of tire thread. Specification: Tip Height: 1mm Tip diameter: 2.3mm Overall height: 13mm Head Diameter: 9mm Material: Hard Metal Color: Silver Package Includes: 100 Pieces Anti-Skid Screw Stud Note: 1. Please check as much as possible to make sure the item is the one that you need. 2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm)