Elastic Material --- Can be stretched to fit for chair within 36-46cm/14.17-18.11inch in length and width,seat thickness 3-5cm Easy Installation --- All you have to do is slip it gently over the seat. The elastic edge will keep it steady and nicely tucked in, makes the desk chair look like new. Unique Design --- Multiple colors available for your choice, redecorate your task chairs, making your flaky but still reliable chair new again, greatly graces your home or office. Multifunctional --- Use it for dining room chair, wedding banquet seat, hotel chair, bar stool, party, office, etc. Easy Care --- Made of polyester spandex, machine washable, eash to clean. Package Includes:(4 Pack) 1 Piece Chair Seat Cover (Back cover is not included)