Help baby build the fundamentals of discovery with the Baby Einstein Four Fundamentals Wooden Sensory Set. This stacking wooden block set includes 4 building blocks each meant to engage baby in playful and purposeful ways.   The Listening toy squeaks, the Vision toy includes high-contrast patterns for visual development, the touch toy engages tactile discovery and the fine motor skills toy features little arms to twist and turn. Baby will love stacking, twisting, touching and spinning the toys in this multisensory wooden block set.