The Tynor Lumbo Back Rest I91 UN is a back support Pillow designed to provide support and promote proper posture while sitting. It is commonly used to alleviate lower back pain, improve spinal alignment, and provide support for individuals with back conditions or those who spend long periods sitting. Is designed to give you comfort and relieve the anterior pressure on the vertebrae. Ideal for cars and office interior. Soft and washable covers. Comes in universal size. Supports your back.