Turns Reformer into a cardiovascular machine. Heavy-duty tubular steel frame. Soft landing with flat double-stitched strapping. Dimensions: 33.5L x 26W inches. Manufacturer's warranty included. The MERRITHEW Cardio-Tramp â€“ SPX is designed to fit the SPX model Reformer and turn it into a unique Pilates cardiovascular workout. This tramp features a heavy-duty tubular steel frame and durable surface with flat double-stitched strapping that's easy to clean and replace as needed. A tramp allows for plyometric activity for extended periods of time and makes a terrific workout accessory for professionals and amateurs alike.