1 - Good Posture Correction - Our back support cushion features an innovative design that uses lever principles to help correct your posture. After a few weeks of use, you'll develop healthy sitting habits and alleviate the back and neck pain caused by poor posture. 2 - Ergonomic Engineering Design - Unlike traditional seat cushions, this lumbar support pillow offers effective back support. It's ideal for those who spend long hours sitting, helping you maintain the right posture for comfort and health. 3 - Portable and Versatile - This back support seat is easily foldable, making it convenient for various settings such as office chairs, gaming seats, car seats, beds, sofas, and even the floor. 4 - Premium Material and Durability - To balance support and comfort, we've chosen high-quality PP synthetic resin material. this ready rocker back support is built to last and can withstand pressures of up to 800 pounds. 5 - A Gift of Health - This cushion makes for a thoughtful gift, promoting good posture habits. For optimal results, this size is suitable for individuals of medium build, ranging from 50 to 180 pounds.