Kids simply sit, step or hop on these mesmerizing liquid tiles to watch the colors seep and swirl! Designed with a no-slip backing for safe classroom use, the tiles are filled with colored liquid that creates ever-changing patterns when pressure is applied. It’s the perfect way to provide a satisfying sensory experience while building gross motor skills! Large Size: 20x20 Small Size: 12x12 Pack Specs: Case includes 10 liquid tile, there is 9 colors, one color will be double to complete 10 liquid title.