New! Safety is No.1 - The outdoor zipline for backyard with a harness is a safer and sturdier option than the typical zipline kit with seat. The zipline brake is made with thicker steel then the rest to ensure a safe ride for kids and adults up to 330lbs. The adjustable harness allows for a snug fit. Stainless Steel Parts - In outdoor activities and playground equipment, security is the most important consideration. Zip lines are made of SUS304 stainless steel, which is durable and sturdy. Easy to Assemble - The zipline kit is partly assembled. All you need to do is find two sturdy trees, wrap them around, straddle the seat, grab the handles, and go. For Both Kids and Adults - Large weight capacity makes this zipline great for both kids and adults to play. Enjoy the fun of our backyard zipline in the convenience of your backyard. It won't just bring them joy, but also improve balance, strength, and coordination.