Gaiam Balance Ball Chair Covers BALANCE BALL CHAIR BALL COVER: Designed to fit the Gaiam Classic Balance Ball Chair 52cm Balance Ball TRANSFORM BALL INTO STYLISH SEAT: Add some color and flair to your balance ball chair ball with these stylish covers COMFORTABLE SEAT: Soft cotton-lycra blend provides a comfortable seat with a snug fit EASY ON-OFF: Sturdy nylon zipper makes for an easy removal CARE INFO: Machine washable removable cover is easily removable to toss in the washing machine