The WM 500 is a simple seat meant to be used for areas with very little available space. The seat can be delivered with or without back, with or without rotation, and also as bar stool.
WM 300 is a wallmounted seat with or without mounting plate. The seat is mounted on areas where a seat is needed but no space is available. The seat can also be delivered with a pillow for the back. The seat have limited seating comfort.