The trigger release feature on this walker allows the user to close the walker without removing their hands from the handle. This is ideal for individuals with limited finger dexterity. The trigger release can be reached with hands of all sizes. The durable composite trigger release resists cracking and breaking. The sturdy 1 diameter anodized extruded aluminum construction ensures maximum strength while remaining lightweight. Replacement wheels (item #1081A) are available. This walker also includes rear glide caps (item #1085A) and glide covers (item #1085B) allowing use on all surfaces. It is patented and has a limited lifetime warranty with a 350 lb. weight capacity.