* Telescoping Parts Are Manufactured With Internal Bushings And External Lock Nuts To Provide Totally Silent Usage. * Vinyl-coated  Tapered  Contoured Arm Cuffs Mold To User For Extra Comfort. * Heavy-wall  High Strength Aluminum Tubing. * Black Components Hide Signs Of Wear And Scratches. Patient Height Range : 5'10 - 6'6  Weight Capacity: 300 Lb