Elastic Fabric: Each desk chair cover is made of 90% polyester and 10% spandex, with enough flexibility. It is suitable for most computer office chairs. Chair Size: Measure your chair before purchasing. Chair back: (16.5-21.6 inches) width x (22.8-26.7 inches) height/ Chair seat: (14.9-21.6 inches) width x (14.9-21.6 inches) length. Zipper Design: You will love the high-quality boss chair cover with zippers, which are provided on both sides facilitate fixation and prevent shedding. Decorate & Protect: Redecorate your office chairs, it will give your office chair a new look if your chair looks a bit broken or not so new. It will also protect your chair from further damage. Care Instructions: Our boss chair covers are machine washable in cold water. Do not bleach. No dry cleaning. Iron in low heat.