Power Systems Double Cords from IndeMedical.com offer a full range of motion and simulate exercises performed on cable weight machines. All the resistance tubing from Power Systems is produced using a unique layering process that improves longevity in commercial or institutional settings. Tubes are connected with a 10.5 inch nylon anchor strap that can be held by a partner or attached to a fixed object, like a doorjamb. Six resistance levels for any user, whether you are an experienced athlete or just beginning fitness training. Plastic handles with padded grips.