Gibbon Slacklines ClassicLine Slackline Most-bought slackline in the world, Gibbon's classic line is ideal for beginners and all-rounders Set offers simplicity and durability, and is the most widely used slackline set in schools, gyms and for training purposes Original 49-feet red model with 2-inch width, for low mounting height and safe handling Two-part set for fast assembly and disassembly Approved by the German Association for Technical Inspection