Have you ever had problems with untying some of your slackline knots? A marlin spike is a simple tool to open up all your knots, even the tightest ones. No matter how many whippers you took, no matter how long your line was rigged. A marlin spike will open your knots. Simply put the tool between the strand of your knot and work them open. The rounded shape of the marlin spike will leave your rope
without damages while the knot opens. The integrated shackle opener is a really useful thing too. A must have for any serious slackline rigger!