Hello, the EZ Stand-N-Go is adjustable is width from 19-26 inches across. If the width of your chair's leg support is less than this range, your chair will be compatible with the EZ Stand-N-Go. If you have any more questions about this item, please give us a call at 1-800-506-9901 and we will be happy to assist you. Thanks, Stander Customer Care
Hi Don, Once the Stand 'N Go is assembled slide it onto the couch and tuck the frame into the edges of the couch. Most chairs, even if the cushion isn't removable, will have a small gap where the frame can be slid into. We'd be more than happy to get on a call with you and walk you through it over the phone or answer any other questions you have. Give us a call at 1-800-506-9901. Thanks
HI SJ, the handles on the EZ Stand-N-Go do adjust in height. You can adjust them by inserting the screw into predesignated holes, depending on your preference of height. They can adjust from 21.5 inches high up to 31.5 inches high. If you have further questions please feel free to contact me at firstname.lastname@example.org or 1-800-506-9901. Thanks!