Features: Discover the durability and rust resistance of our high-quality nails, designed to provide strong support. Crafted from steel, these nail spikes feature smooth, burr-free surfaces, ensuring ease of use and resistance to deformation over time. These spikes offer reliable durability and strength, even under heavy loads. Simply place them on the ground to prevent unauthorized vehicles from parking in your private parking space. 20 pieces per set, meeting your practical needs with a long service life and reusable design. Specifications: Material: Metal Size: 25mm (0.98in), 30mm (1.18in), 45mm (1.77in) Package Includes: 20 Pcs Car Tire Puncture Nail Spikes Note: Please allow 1-2 cm errors due to manual measurement. Due to differences between monitor displays, the picture may not reflect the actual color of the item.