Standard aluminum pushbutton crutches feature a double extruded center tube that provides load-bearing strength where it's needed the most. The special foot piece utilizes durable rivets to secure the aluminum tubing from the inside, providing more stability than plastic connectors. Long, virtually unbreakable stair deflector helps protect against the crutch slipping on stairs and helps increase stress tolerance at all angles without cracking; nonskid rubber tips provide good traction. Weight capacity 300lbs.