Sit anywhere while reducing back pain, discomfort, and stresses that aggravate the underlying causes of acute and chronic pain. BackJoy® corrects posture and floats your spinal system over any type of seat like a shock absorber for your spine. It gently tilts your pelvis forward to induce a neutral position for your spine so the strain and pressure of supporting your body weight is moved away from the spine's muscles and ligaments and placed on proper weight bearing bones. Less strain and pressure means less aggravation and pain. The device is small, lightweight, and easy to use. The padding is made of copolymer polypropylene plastic, with 100% open cell urethane foam fill and brushed polyester fiber covering. Measures 16" H x 13" W x 4" D. Clean with upholstery cleaner.