The CouchCane is compatible with any four-legged couch, sofa, chair, lift chair or recliner. The front and rear legs of the chair must sit on top of the base pads of the CouchCane to hold it in place. The CouchCane adjusts in depth to fit chair leg depths of 20″-36″ and is not intended for free-standing use. If your chair does not have four legs, has a round base, or has legs with depths shorter than 20″ and deeper than 36″, the CouchCane will not work with your chair. Before purchasing the CouchCane, we recommend measuring the depth between the front and rear legs of the intended chair to make sure they fit in the 20″-36″ compatibility range.