The Metolius Easy Aider is a revolutionary adjustable design that allows you to operate both the buckle and the carabiner without changing your grip. It is made from ¾" nylon webbing and has anodized CNC aluminum buckles for durability. The wide, comfortable foot stirrups buckle securely in place, making this the ultimate ascender sling! Easy Aiders are labeled and color-coded specifically for the right and left foot. For body weight only.