Description: Adjustable Design: This bed backrest for sitting up features a five level adjustable angle, allowing you to find the most comfortable position for the elderlyEasy Setup: The bed backrest is foldable and requires no installation, making it convenient to use and store when not in useComfortable Support: The adjustable sit up back rest is made of carbon steel, mesh fabrics, and sponge material, providing a comfortable supportProduct Dimensions: With a size of 55cm in length at the base, 52cm in width at the base, and 58cm in diagonal length, this backrest fits most bedsPackage Includes: Each package comes with 1 adjusable backrest. Please note that the lower end of the backrest must be against the head of the bed to prevent it from moving Size Chart: Bottom Length:55cm/21.65inchBottom Width:52cm/20.47inchDiagonal Length:58cm/22.83inch Package Includes: 1Bed Backrest Note: Please allow slightly errors due to manual measurement and different monitors.