These Elevating Legrests will only fit Drive Medical Bariatric Sentra Wheelchairs. They are for use with Sentra EC (STD20EC with Dual Cross Bar thru STD24EC Series), Bariatric Sentra Extra Heavy Duty (STD20 thru STD24 Series) and Sentra Reclining (STD14RB thru STD22RB Series) Wheelchairs.