20 Pieces Triangle Safety Nail Cap Ground Nails for Car Motorcycle Fence Height 3.5cm Note: This product page only sells the 3.5cm height size, if you need other sizes/colors, please refer to Questions and Answers. Description: Material: Made of quality iron, these caltrop spikes are designed for long-lasting durability and strength, ensuring they remain effective in various conditions. Effective Bird Deterrent: 1.2/1.4 inch spikes keep birds away and protect your space. Optimal Size for Versatility: Each caltrop stands at a height of 3/3.5 cm, making them suitable for a wide range of applications, from security to landscaping. Sharp and Effective Design: With a sharp design, these tire spikes are designed to provide maximum penetration and stability when deployed on different surfaces. Comprehensive Set: This package includes 20 individual caltrops, offering an ample quantity for extensive coverage or multiple uses as needed. Specification: Height 3cm/1.18 inches; Height 3.5cm/1.38 inches. Package Includes: 20 Tire Repair Spikes. Note: Please allow for slight errors due to manual measurement and different monitors.