Stretch Jacquard Office Computer Chair Seat Covers, Removable Washable Anti-Dust Desk Chair Seat Cushion Protectors - Black（Does not include back cushion） 92% Polyester / 8% SpandexFashion Protect: Fashion rhombic lattice jacquard fabric design, give your old, damaged or ugly chair a new look and protect your chairs from scratches, spills and accidents, especially great for office workers and students or have a family of pets.Material: Made of 92% polyester and 8% spandex, stretch to fit most office chairs easily. Equipped with elastic band, easy to install and non-slip, wrinkle resistant and reusable.Recommended Chair Size: Suitable for seat cushion length: 18''-22'' ; Seat cushion width: 18''-22''; Seat cushion height: 1.3''-2.5''.Installation and care: Durable fabric with elastic edge secures the cover in seconds. Machine wash in cold water, gentle cycle. No ironing needed. Flexible use: Stretch chair seat covers are ideal for square or round seat cushions,