Dr HO's® Decompression Back Belt™ relieves back pain. Years of pain therapy treatment and relief experience is incorporated into every aspect of the design. Pro-grade spinal traction belt expands vertically (4 1/2 - 7 1/2“), inflates for a comfy custom fit. Relieves pressure and supports the lower back muscles. Lifts 20 lbs. off disc pain. Wear discretely beneath clothing. Includes foot pump. Polyurethane. Use pants or waist size for belt size.