HUSLA Pelvic Tuning Chair for Lower Back Pain Prevention The HUSLA chair for lower back pain prevention is designed with a seat that allows for forward, backward, left, right, and rotational movements, with a maximum tilt angle of no more than 15 degrees in all 360-degree directions. It is a fitness chair that safely applies balanced stress to the pelvis and surrounding lower back area. Effects of HUSLA: * Tightens the waistline. * Prevents and improves lower back pain. * Effective for improving constipation and frequent urination. * Creates correct and beautiful posture. * Resets unbalanced posture and improves balance. * Used in day services for group instruction on core strengthening for the elderly. ★ In what situations? * While using a computer * In the office * Before and after driving a car * Before and after sports * As a chair at home * When you wake up in the morning and before going to bed at night ★ Product Specifications * Height: 43-49cm * Seat: Depth 38cm x Width 48cm * Leg diameter: 60cm * Maximum seat tilt: 15 degrees * Weight: 7.5kg I purchased this at a training gym two years ago. I was satisfied with the purchase and have hardly used it.