Office chair cushion | Office Chair Back Support | Office Chair Seat Cushion Product Introduction: Name: Guardian lumbar support Jacket: 3D air layer fabric Inner sleeve: polyester fiber Inner core: polyurethane Weight: 710 Size: 37 * 43 * 13/10 cm (14.6 * 16.9 * 5.1 * 3.9 inches) Orthopedic lumbar and back support cushion Orthopedic lumbar and back support pillows are designed to relieve pain and comfort so that you can enjoy good days and good nights. Characteristic: Ergonomic spine curve Washable cover Use/Formulation: Back pain and sciatica Back and spine support Pregnant back support Posture correction Chronic low back pain Made of high-quality materials and components: 100% slow rebound high-quality storage foam 3D air layer can be washed outside the factory Important product information: The memory foam emits a harmless odor when it is opened, which is normal. Deflate the memory foam between 48 and 72 hours. Do not clean the inner core of the memory foam. Cover can be washed Memory foam is very sensitive to temperature. The strength or softness of all memory foam products varies with temperature. Your pillow will feel softer in warm temperatures and firmer in cold temperatures. If used medically, please consult your doctor before use. The product is most suitable for chairs with flat backs.