The Sylvan Rope Ascender is essential tree climbing gear. The clamp is a light yet sturdy and reliable tool for use with an ascending rope designed for climbing and mountaineering activities under normal weather conditions. Make sure you have it in your tree climbing kit! The Sylvan Rope Ascender is only one section of the climbing gear safety chain and must be used together with compatible safety equipment. The purpose of the rock-climbing gear clamp is to minimize the risk of falling while hunting, climbing, or mountaineering. Tree workers can also benefit from this as part of the arborist equipment.