This round play mat has a diameter of 120 cm and is crafted from 100% organic cotton knitted fabric (not certified organic per third-party, but supplier states cotton source is pesticide-free). The mat is filled with a 1.5 cm layer of recycled polyester fiber for light cushioning. The outer edge is finished with a solid beech wood ring that has been sanded smooth with no sharp corners; the wood ring serves as a decorative border and light weight to keep the mat flat. The mat is not waterproof and should be spot-cleaned only. Do not machine wash. The wooden ring is not intended for lifting or swinging the mat. Small children may attempt to chew on the wood; the wood is untreated with any coating. The mat is suitable for quiet play, reading, or sitting. Because of the wood ring, the mat cannot be folded flat; it rolls up for storage (rolled diameter approximately 40 cm). Always supervise infants around the wooden ring to prevent accidental impacts.