Combining multiple tools into one, this outdoor buckle is a practical addition to any adventurer's gear. The construction is tough, while the integrated compass, whistle, and fire starter provide essential functions for outdoor . This buckle is designed to enhance safety and preparedness, making it an invaluable accessory for any outdoor activity. Features Inner diameter: 20mm/19mm - Color: Black -Material:Plastic - Size: 5.50X3.00X1.50cm/2.16X1.18X0.59in -Versatile accessory: the strap buckle combines multiple functions to cater to outdoor needs, making it suitable for exploration, camping, and hiking -Solid: crafted from strong plastic, this replaceable bracelet buckle can be used for binding ropes or bracelets, allowing safety and reliability -Navigation tool: features a builtin compass for easy navigation, helping you stay on course and avoid getting lost -Signal for rescue: the whistle design allows you to signal for help, drawing the attention of rescuers and increasing your chances of -Fireready design: includes a buckle for convenient firestarting, providing warmth and addressing heating needs in the wild Package list: 10 x buckles