Gibbon rope classic line 15m the gibbon rope classic line 15m is a very robust but flexible line for everybody it is the perfect all rounder suiting beginners as well as progressive slackliners can also be used as a portable grind rail for all rollerbladers skate and snowboarders outdoor accessories 15m 50mm width for low mounting height and safe handling maximal load 4t two part set for fast assembly and disassembly gibbon classic is a tuv certified product gibbo