This is the massager that secures in a doorway, enabling you to target hard to reach spots and apply the ideal amount of pressure. Without nails, bolts, or screws, its stainless steel bar mounts to door frames 24" to 36" wide while protective silicone rubber caps on the end prevent marring. Its swiveling head is ideal for targeting knots in the neck, back, shoulders, or legs, and it comes with a set of standard ball rollers, a set of massage discs, and a pair of hot/cold therapy rollers that can be heated in a microwave or cooled in a freezer. With a quick release feature and a built-in bubble level. For users up to 300 lbs. (3 1/4 lbs.)