Feature●AUTHENTIC PRODUCT: Original McKenzie Waist Bag, Relieves Back Pain●Worlds Best Selling Waist Mat, Recommended by Physical Therapists, Vertebraidists, Back Pain Experts●EXCELLENT CONSTRUCTION: Good quality, lasting foam, no wrinkles, moisture wicking and sweat wicking, 100% polyester removable cover●The built-in tape is firmly fixed around the back and waist of many chairs. PROFESSIONAL SUPPORT: Designed to ensure accurate alignment and posture of the spine while sitting, providing comfortable back pain relief in the lower back (lower back) area. Measures approximately 11" long x 4.75" diameterDescription Design Name: Standard Density Original McKenzie Waist Bracket - Low Back Support for Office Chair and Auto Seat