The Hugo Mobility 721-790 Adjustable Aluminum Crutches for Walking are made of anodized aluminum and are capable of supporting up to 300 lbs. The crutches feature contoured crutch tips with a curved stair deflector at the tip and a built-in metal ring to protect against premature wear. The crutches are adjustable to support users ranging from 4 feet 6 inches to 5 feet 2 inches. The crutches also feature thick-cushioned underarm pads and shock-absorbing hand grips that are washable and perspiration-resistant.