Innovative - will enhance your well being. Telescoping parts are manufactured with internal bushings and external lock nuts to provide completely silent usage. Vinyl-coated, tapered, contoured arm cuffs mold to user for extra comfortbrHeavy-wall, high-strength, aluminum tubingBlack components hide signs of wear and scratches. Adults (5' - 6'2"). 5161 - Standard Adult Adjustable Forearm Crutches, Adjust 5'- 6'2" - 1PR/BX.