Buy American and you'll get what you pay for. If you're making a survival bracelet and plan to utilize a quick, side-release buckle get one that won't break on you. Our American-made, 5/8-inch heavy duty buckles are perfect for numerous applications and have been used in thousands of survival bracelets. The buckle measures 59.5mm long and the 5/8 inch (16mm) loop easily fits two strands of 550 parachute cord. These buckles are flat and are perfect for a variety of uses outside of just bracelets. The whistle is commonly used on backpack sternum straps and features Jet Styling, FullFlex latching and a larger blow hole utilizing the Venturi effect. A great feature perfect for any survival or alert scenario. We offer four colors to choose from as well as a wide variety of quantity options.