Color liquid moves with every step, jump, dance or hop. Perfect for sensory play. Ideal for dance floor, classroom, play room, daycare, fashion shop, bar, or for store setting, etc. No need for any installation. Come in pack of 4 tiles, size: 11.8"x11.8" (30cm x 30cm) Durable, solid construction, leak-proof with a non-toxic cosmetic liquid inside.