Little ones get a hands-on sensory experience with our irresistible see-inside blocks! The 12 baby-safe blocks are filled with balls in 3 sizes and 4 colors—and they make intriguing sounds with every shake! Blocks feature soft plastic edges for easy gripping; each measures 2".

This box set is packed with open-ended play potential. Peek & See bouncing balls in primary colors. They will amaze your baby or toddler!