The ultimate dimpl experience! Built into the high-quality, rigid frame of each one are 25 dimpl bubbles 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. 25 bubbles in 4 sizes and a whole rainbow of color. 10.5 x 10 x 1.25". Hand washable. Bubbles are 100% food grade silicone.