2 in 1 Ring Tower is the smartest version of a classic stacking toy, that helps develop cognitive skills, logical association, and hand-eye coordination. Game 1. Stack & Learn: 4 rings in decreasing sizes to stack. Game 2. Sort: 4 different colored shapes to insert in the right hole. The rocking base makes the game even more fun! The different raised patterns on each ring stimulate soft motor skills, so important for baby's future handwriting. Smart2Play toys transform amusing creative experiences into fundamental cognitive achievements.