The Yookidoo Shape and Spin Gear Sorter is a developmental activity toy for toddlers ages 1 to 3. It includes seven gear bases and seven removable gears in bright colors and shapes, including circle, triangle, plus, heart, square, and hexagon. Each gear fits only with its matching shape, strengthening sorting skills, while the flexible base can be arranged as a row, a snake, a triangle, a square, or a circle and the gears always spin regardless of layout. The toy promotes STEM-based learning, cause-and-effect understanding, hand-eye coordination, and fine motor skills, and requires no batteries.