Transform your backyard into an awesome adventure with the Slackers Hawk 70 Zipline Kit with Spring Brake. This outdoor play set from B4 Adventure contains everything needed to create your own backyard zipline: 80 of cable, a heavy-duty seat with an adjustable rope, a solid steel trolley, a turnbuckle, assembly hardware, a braking system, and detailed instructions. Trolley has locked, non-slip rubber hand grips, while the turnbuckle has locking nuts and bolts, comes with a turnbuckle safety backup, and includes an easy-to-use tightening tool. The B4 Adventure Slackers Hawk 70 Zipline Kit can be set up by 2 adults in under an hour. Ages 8 and up.Adult supervision required. Maximum weight capacity:200 lbs. Type: Siacklines & Ziplines.