The Swing-away Elevating Leg Rests can be used on different wheelchair models. The compatible wheelchairs include the Sentra EC Extra-Wide (26"-30”), Sentra EC, Sentra HD and Sentra Reclining. The leg rests also attach perfectly to Blue Streak, Silver Sport 1, Silver Sport 2, and Silver Sport Reclining. The Cruiser III, Cruiser X4 and Polyfly transport chair are also covered. The leg rests ensure additional comfort and assistance. It is a necessary & useful accessory for several types of wheelchairs.