PERFECT FIT: Our stretch office chair cover are one-size-fits-most. 2 Size available. Always measure chair back width and back height before ordering: Size Large for chair height 27.5-31.5", chair back width 17.7-22.9", seat width 17.7-23.7", seat length 17.7-22.9", thickness 1-4" AMAZING MATERIAL: office chair slipcover are made of 85% polyester/15% spandex fabric with small checks jacquard pattern. High elasticity, soft and anti-wrinkle, durable and long lasting, freshen up your interior decor EASY INSTALLATION WITH ZIPPER: The high-quality office chair cover is ultra comfortable and highly fit, zippers are designed on both chair back sides for facilitate fixation and using. Morever, bonus with 2 matching armrest covers could helping you relax your arms and reduce elbow pain METICULOUSLY ENGINEERED: More than the function-over-fashion slipcovers that might come to mind, chair covers are functional, beautiful and save you money by extending the life of your couch. Transform your old