This versatile outdoor buckle is designed to meet the needs of hikers, campers, and adventurers. Its construction includes a compass for direction finding, a whistle for emergency alerts, and a fire starter for situations. The buckle's compact and lightweight design makes it easy to carry and attach to various gear, allowing you are always prepared. Features Inner diameter: 20mm/19mm - Color: Black -Material:Plastic - Size: 5.50X3.00X1.50cm/2.16X1.18X0.59in -Multipurpose tool: this hiking plastic buckle is designed to meet various outdoor needs, ideal for adventures, camping, and hiking -Sturdy: the bracelet buckle is ideal for binding bracelet, allowing safety and reliability -Integrated compass: comes with a builtin compass for easy navigation, preventing you from getting lost and enhancing skills -Whistle for help: the integrated whistle can be used to call for help, attracting rescuers' attention and increasing chances -Firestarting feature: features a buckle for easy firestarting, providing warmth and solving heating issues in outdoor situations Package list: 20 x buckles