The popping never stops! Built into the strong, high-quality plastic frame are 18 dimpl™ bubbles in two different sizes just waiting to be pushed, poked, and popped again and again.The squishy silicone is fascinating for the fingers. Watching the board go from un-popped to popped is curiously satisfying. Young, old - no matter who you are - your fingers just can't stop! Encourages fine motor skills, sensory learning, calmness18 bubbles in 2 sizes and a whole rainbow of colorPerfect for all ages - travel, relaxing at home, sensory discovery and learning.