This product is great for both children and adults as these colorful gel tiles are an amazing addition to playrooms, classrooms, studios or for any party. Commonly used in sensory rooms, these tiles create the feeling of a liquid room, with responsive reaction from the floor with every step helping to create the perfect setting for a relaxing sensory experience No installation is necessary as all tiles have an extra strong non slip backing to prevent the tiles from moving once on the floor. Super endurable flooring made to withstand high traffic and continued heavy use and play; Size: 19.5" X 19.5" Tested and certified for children’s safety and all tiles are non toxic to pets