NOTE: The cushion is placed in a vacuum sealed package. Usually it will regain its intended shape within 24-48 hours. Shinnwa chair pads are designed as U shaped features a woven textured tonal color cover measuring 16.5 W x 16 L x 1.5 D. With grippers and non slip silicone bottom will double keep the seat cushions in place to prevent it from sliding. The washable cover is made of high-quality polyester that is breathable and comfortable.And the filling high density foam which can provide better support to your tailbone soothe achy muscles. These durable kitchen chair cushion cover is removable and can be washed with a washing machine. This stylish chair pads suitable for most chairs including wood/metal chairs folding chairs terrace chairs game chairs etc.