[Reference Size]: Universal stretch office chair covers. XL size --- chair back width: 45-58CM, chair back height: 69-80CM, chair seat width: 43-60CM, chair seat length 45-58CM. [Velvet Plush Material]: Our computer chair cover is made of velvet fabric tensile strength which is better than ordinary fabric. Cover the rips, tears and tattered edges of your old office chairs. The elastic edge keeps the cover securely in place. [Easy to Install]: All you have to do is gently slide the office chair cover over the seat. The elastic edge will keep it stable and tidy, making the office chair look new. [Machine Washable]: You can also easily remove and clean it by simply throwing it into the washing machine. Please hand wash or machine wash in cold water. No ironing required.