We designed this portable frame along with the University of Dayton Engineering Department because you asked for a suspension system that could be moved around the room easily. It can be assembled or dismantled by two people in less than 20 minutes. Once unassembled, it will fit through any standard door. Our suspension unit is made of aluminum tubing and has removable padding on all eight legs. With three suspension points, it will accept any kind of swing, and can be used for linear movement.