DURABLE AND SAFE: Coated design for better rust resistance, waterproof and weatherproof ONE-PIECE TECHNOLOGY: One-piece seamless connection technology makes it not easy to deform EASY TO INSTALL: The curved design makes this buckle easier and faster to install than other buckles SMOOTH SURFACE: No sharp corners, so slack thread wear is completely avoided STRONG CARABINER: Made of high carbon steel, capable of withstanding up to 1000 lbs of pull Ninja Warrior Obstacle Course Accessories New Upgraded Buckle for 2” Width Slackline No Tearing Slackline