Product Material: Spandex + Nylon + Sponge Size: 40 * 32 * 8 cm Color: black, purple, lake blue Quantity: 1 piece Package content: 1 piece * waist pillow 1. High-quality material: The ergonomic back cushion car seat made of space memory foam and breathable fabric can maintain its shape and feel soft and comfortable. And not too soft or too hard, it can support the waist and fit the lordotic curve of the waist. Provide good support, effectively improve posture, and give you a different experience. Maintain the same support through soft and fluffy elements, allowing you to relax and comfortable throughout the day. 2. Removable and washable: The breathable mesh is soft, and the back design allows the car lumbar pillow to be easily disassembled, cleaned and cleaned. It can be easily installed after washing and drying. 3.Relieves Back Pain : Its full back support helps keep your neck, shoulders and lumbar vertebrae properly aligned, liberating you from upper and lower back pain. It also prevents the development of sciatica and herniated discs. 4. Ergonomic design: Push up the lumbar spine, embrace the waist on both sides, and fit the lordotic curve of the waist better, so that the lumbar spine can be fully supported and relieve the soreness of the waist. Fits the seat, just stuck in the middle of the seat, not easy to move. 5. Wide application: Suitable for any car seat, wheelchair, office chair or computer chair, family chair or seat of public transportation, such as airplane, subway, bus and train, advanced kayak, medical motorcycle, air travel .