The Stainless Steel Zipline Stopper Kids Backyard Spring Stop Brake Kit System is a durable and reliable outdoor toy accessory designed to provide a safe stopping mechanism for zipline enthusiasts. Made from high-quality stainless steel, this stopper kit is built to withstand up to 350 pounds of weight, ensuring the safety of children and users during playtime. With dimensions of 25 x 86 x 19 inches and a United States manufacture, this kit offers a secure and stable solution for controlling the speed and stopping of zipline systems.