●[Strength] 50KN You can use it with peace of mind knowing that you can use it in a pull-up or working position at high places ●Material: Made of high quality aluminum and weighs approximately 9.5 oz (280 g), lightweight and easy to hold ●Compatible Rope: 0.4 - 0.6 inches (9 - 16 Anodized surface provides maximum protection for the rope and device from rubbing while working, wont damage the rope and protect your fingers from burns ●[Applications] Mainly used for elevated drops and pull-ups and belay devices, caving, rappelling, general climbing and rescue. The large ring makes it very easy to put on and take off the rope and allow for a smooth descent