A. Feature: The lower back traction device transfers the weight of your spine, decompress the spine to restore the disc to normal. Reduce pain and stress on pinched nerves. Improve the nutritional flow of your spine. Help to relieve pressure off pinched nerves, suitable health care tool for easy usage. No pills, no appointments, long-lasting back pain relief. B. Specification: Length of traction belt: 45.2 inch; Before Inflation Width: 5.1 inch; After Inflation Width: 7.9 inch; Length of extension belt: 9.8 inch; Material: Outer layer: PU; Inner Layer: Cotton; Innerlayer of air inflation: TPU. C. Note: The pump will make a sound of air leakage when the belt is fully inflated, stopped pumping and remove it. This belt can't be immersed into water to wash it, It can be wiped with water or alcohol. This belt is also to avoid direct sunlight and heat, so state to put it in a cool, dry place after using. D. Package: 1 x Lumbar Traction belt, 1 x Hand pump, 1 x Extension belt, 1 x Use manual.