The Melissa and Doug Rainbow Stacker Classic Toy features 8 smooth, easy-to-grasp wooden pieces to stack on a solid-wood rocking base.This Melissa & Doug ring stacker features brightly coloured and smoothly sanded pieces that help children build early shape, colour, and size-differentiation skills. This Melissa & Doug Rainbow Stacker Classic Toy makes an exceptional gift for kids 18 months and up. Add the Melissa & Doug Shape-Sorting Cube to round out the hands-on, screen-free play experience.