Ascenders and descenders are devices used for ascending and descending trees, respectively. Tree climbing is a recreational activity as well as a means of accessing hard-to-reach places for work or other purposes. Ascending tools allow the climber to move up the tree without losing grip, while descending tools help the climber control their descent.

There are many different types of ascenders and descenders available on the market, each with its own advantages and disadvantages. The type of device you choose will depend on your specific needs and preferences. Some climbers prefer lighter, more compact devices while others prefer ones that offer more security and stability.

Before using any type of ascender or descender, be sure to read the instructions carefully and practice using it in a safe area.

There are a variety of ascending devices available to climbers, each with their own unique advantages. Hand ascenders are typically used in conjunction with a chest harness, and provide a secure grip for pulling oneself up. Knee ascenders attach above the knee and provide extra support and stability when climbing. Foot ascenders are placed on the foot and help to distribute weight more evenly, as well as providing additional grip.