Using the PIRANA GUIDE is simple. First, choose one of the three rope installation options based on how much friction you need for your descent. Before you start going down, make sure the friction is set to your liking. When you're descending, if you need more braking power, use the friction spur. To install the rope, the plastic ring helps keep the connector in the right position, so you can do it easily while the device is on your harness. Just be careful not to drop it. When creating a tie - off, use the locking slot and the additional spur for a quick setup. After each use, clean the descender with a dry cloth to keep it in good condition. Check it regularly for any signs of wear and tear. If you notice anything wrong, don't use it until it's been properly inspected and repaired.