Zip Line Fun is "The World's Safest Zip Line".Perfect for daredevils yet safe enough for Mom and Dad, this high-quality zip line brings adrenaline-pumping excitement to any backyard. Featuring 90 feet of galvanized aircraft cable and an easy-to-grip trolley, it's a strong piece that makes for absolutely entertaining get-togethers, family gatherings and more! Fully enclosed trolley & drop-style handles mean no lost fingers No metal on metal abrasion to the cable, which protects the cable from abrasion | Adventure Parks Inc Adventure Parks Zipline 35, Yellow