Size: Unfolded size 50 inches x 56 inches. Headrest is 19x10.2 in. (Chair not included).The compressed packaging caused the mat to be relatively flat. Don't worry. Just pat it a few more times and wait a few days for it to return to full. Washable/Removable Cover: The cushion replacement has a zipper design for easy removal and cleaning of the cushion cover. The non-woven wraps the interior, and the PP Cotton is easy to remove and replenish. Headrest: Fits your head and helps you better relax your cervical spine and relieve cervical spine pain. Protect your caudal spine and hip joints at the same time. Non-slip Straps: There are straps on both sides of the seat cushion, which can be better fixed on the egg chair and is not easy to move. Multifunctional Cushion: Suitable for hammocks, hammocks, swing chairs, rocking chairs, rattan chairs, living rooms. Can be used for indoor or outdoor garden furniture.