Description: 【Premium Material】: Back Sleeping Pillow is crafted from quality Polyester and spandex that adapts to your body shape while providing time resilience and support without collapsing over time 【Ergonomic Support】: Anti Wrinkle Pillow Features a memory foam core that gently supports the neck and cradles the head, perfectly aligning with the curve of your head, neck for optimal comfort 【Versatile Use】: Designed for multiple scenarios, ideal for use on wheelchairs, sofas, recliners, or beds, making it suitable for side sleeping prevent, or maintaining a supine position 【Removable restraint strap】Keep Head Straight Pillow is equipped with a removable restraint strap to stabilize the forehead position, prevent forward tilting or rolling over, and ensure a stable sleeping posture. 【Size】: Back Sleeping Pillow size is 38cmx23.5cmx16cm/14.96inchx9.25inchx6.30inch Specification: Material:Polyester, spandex Size Chart: 38cmx23.5cmx16cm/14.96inchx9.25inchx6.30inch Package Includes: 1 Back Sleep Pillow  Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.