Memory Foam Seat Cushion

MATERIAL: Highest quality 100% memory foam, slow rebound zero pressure, 5 seconds to rebound back to the original shape.   MEN AND WOMEN: Special " U " Hollow Shape Design, when the U hollow is in the front, more suitable for men to use it; When the U hollow is in the backside, it is more suitable for women to use.   SIZE: 45 x 35 x 7 cm (17.7" x 13.7" x 2.7")   NET WEIGHT: 500g ( 1.1 lb )   SHAPE THE HIP: When daily use, you can feel your buttock is being narrowed gradually, getting rid of the flat and the loose buttock.