Art3d Non-Toxic Children Play & Exercise Mat - Puzzle Play Mat for Kids, Toddlers or Baby, 12" X 12" Green-Yellow No need installation Safety: Filled by cosmetic liquid, environmental protection and safety, nontoxic for children Fire resistance: EN13501-1:2007 Bf1-S1 Anti slip function:backside with pvc anti slip mat,strong anti slip function, protect floor and keep still Recommended Use: Dance floor / play mat / kids room floor / children's play house, fashion shop