Come in 6 tiles with different color: red, blue, purple-pink, red-blue, orange-red, green-yellow Safety: Filled by cosmetic liquid, environmental protection and safety, non-toxic for children Interactive: The colored liquid is highly responsive to the pressure from tapping or stepping 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