The Invacare Baraitric Walker Wheel Kit can support an individual up to 700lbs. Converts 6441-A Bariatric Walker to a wheeled walker. Front extensions are designed with double 5" fixed wheels for extra stability. Kit includes plastic glide tips that attach to the rear legs and provide smooth gliding. Patient Height: Approx. 5'6"-6'10". Height Adjustment: 33.50"-43.50". 5 Year Limited Warranty.