Relieves Painful Pressure On The Elbows And Arms, Improves Sitting Posture For Patient Who Leans Toward The Affected Side.. Our Unique Design Naturally Cradles The Patient's Arm In An Ergonomic Trough That Allows For Safety And Security.. Easy To Install, Come With Hook & Loop And 2 Straps, You Will Install It Easily, No Drilling Or Tools Required.. Wheelchair Armrests Fits On Either The Left Or Right Side Universal fits all wheelchairs, transport chairs, most home or office chairs, etc. Wheelchair armrests fits on either the left or right side. Removable special breathable soft knitted fabric cover is machine washable