Slackline Industries Aggro Line, 100-Feet Custom-designed trampoline style webbing provides extra bounce for dynamic tricks Improve balance skills, core strength and coordination while having fun Fully adjustable and easily installed between trees or other sturdy anchor points 3 ton max tension, 300lb weight limit, 10 lbs Kit includes Aggro Slackline, XL ratchet tensioner, Tree protection, Back-up safety line, instruction manual