SOFT STRETCH MATERIAL - Smiry office chair covers are made of 95% polyester and 5% spandex fabric,soft and fortable,sturdy and long lasting. High elastic fit to protect your chair from spills,stains and tearing ly. FASH PRINTED DESIGN - Multiple fash printed patterns to choices,update your old dad office chair. It is ly bine style and durability to add new life to your puter chairs. EASY INSTALLAT WITH ZIPPER - Zippers are designed on both chair ba sides for facilitate fixat and using. You just need open both side zipper and slip on from office chair ba,two ties under the bottom will keep it non slip. SUITABLE FOR CHAIR SIZE - Printed office chair slipcovers will fit chair ba's height: 27.5-31.5 inches,chair ba's width: 17.7-22.8 inches,chair seat length: 17.7-22.8 inches,chair seat width: 17.7-23.12 inches. Please refer to the measuring guide in pictures to measure your office chair size. EASY TO CARE - hine washable in cold water. Wash separately at ntle cycle. Using mild laundry deternt. Do not bleach..