Product descriptionSize:(Dia.)27"/31"/39"/47"/55"/59"/63"Color:Gray/Purple/BrownRound Chair Cushion Feature:1. Low friction and smooth materials enable glide and anti-skid functions,which protects your floor and prevents wear caused by casters (wheels) and other marks of everyday office chairs.2.The office chair cushion reduces friction between hard floors. Ideal for hardwoods, tiles, laminates, linoleum and concrete.3.When fully pushed into the chair, the chair mat can protect the floor under your table.Designed for hard floors (including wood, laminate, tiles, stone, vinyl).Pacage included:1*Round Large Chair Mat