Most agree that zipline kits are one of the most exciting items that you can put in your backyard for hours of enjoyment. Brand 44 ziplines help improve strength and balance all while riding a just a few feet off the ground. Turn your backyard into an extreme adventure park with Brand 44 Ziplines. Includes: 40′ galvanized steel cable, fully assembled steel trolley with comfortable rubber grip handles, hardware to attach to 2 trees, instructions.