6 mos. & up. Children love organizing and stacking the rings on the colorful Moogy Pyramid Stacking Toy. Each piece of this colorful toy features a different sound or texture, to encourage the development of auditory, tactile and visual skills. As your little tot practices stacking the rings, he or she will be developing hand-eye coordination, small motor skills, and problem-solving abilities. Measures 11" x 5.5".