The SideStix Discovery Pro Forearm Crutches are designed for use by individuals with lower extremity, mobility and walking disabilities. These height-adjustable crutches are made of 6061 aluminum alloy upper tubing, .875 inches in diameter, and carbon fiber lower tubing. They come with Spenco neoprene grip covers and leather cuff pads. The cuff pads have 6 millimeters of PPT padding. Each crutch also includes a rubber tip adapter and an articulating Tornado rubber tip. A SideStix tool and an allen wrench are included. SIZES: Large (adjusts for individuals between 5 feet 6 inches and 6 feet 2 inches in height) and small (adjusts for individuals between 4 feet 6 inches and 5 feet 7 inches in height). DIMENSIONS (L): 32 to 37 inches (large) or 26 to 32 inches (small). CAPACITY: 300 pounds. COLOR: Black. WEIGHT: Each crutch weighs 1.67 pounds (large) or 1.58 pounds (small). WARRANTY: Limited lifetime warranty.