Features: Experience customizable comfort with this adjustable lumbar support cushion featuring removable inserts for lower back pressure relief. From memory foamed and breathable, it contours to your spine while promoting airflows during extended use. Ideal for office worker, driver, and students requiring ergonomic back support during prolonged sitting. Securely attaches to office chairs, car seats, or home furniture for poses correction. The curved ergonomic design actively reduces muscle fatigue by distributing weight even across your lumbar region. Specifications: Material: Memory foamed；Breathable jacket ；Removable Size:about 20x25cm/7.87x9.84in Color：Dark Gray Suitable for office chairs, car seats, home sofas and other scenes, providing lumbar support and comfort, effectively alleviating the fatigue caused by sitting for a long time. Package Includes: 1Set Removable gasket waist mat note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.