Features: Discover the durability and rustproof of our high quality Nails, designed to provide robust support. Crafted from steel, these nails spikes boast a smooth, burr free surfaces, ensuring ease of use and long term deformation resistance. These spikes ensure durability and resistance even under heavy weight. Just put them on the ground to avoid other driver parking their vehicle in your private parking space. 20pcs/set, meet your need, long service life and reusable. Specifications: Material: Metal Size: 25mm(0.98in)/30mm(1.18in)/45mm(1.77in) Package Includes: 20Pcs Car Tire Puncture Nail Tire Spikes note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.