General description The 2 Pack Heavy Duty Military Grade Black Zinc Alloy Tactical Belt Buckle is designed for durability and practicality. Made from sturdy zinc alloy, these buckles are resistant to rust and breakage, ensuring a long service life. Technical specifications Material: Zinc alloy Tensile strength: 400kg Applicable strap size: 39mm wide Usage Ideal for repairing backpacks, belts, dog collars, fanny packs, hiking bags, boat covers, and awnings. Both sides of the buckle allow for easy length adjustment of the strap. Quick release feature for convenient opening with just one click.