BackJoy Perfect Lumbar Orthopedic Lumbar Support for Back Pain | Perfect for Office Chair or Car Seat with Adjustable Strap - Contoured, orthopedic design supports the lower back while improving posture - Helps soothe lower spine pressure and promote forward curvature for healthy sitting posture - Encourages natural curvature of the lower back while ensuring airflow, minimizing heat build-up - Dual panels flex inwards with back movements, effectively reducing pressure on the back and spine - Adjustable for preferred back support position Ensure Authenticity: 1. Find the Certilogo label on the back of each SitSmart 2. Use smartphone or desktop & a commitment to #checkthecode in The Authenticator 3. Go to www.certilogo,com 4. Enter the 12 digits identification code/ 5. Scan the QR Code