Fisher-Price Brilliant Basics Rock-a-Stack, Multicolor Activity Toys for Kids

Five colorful rings are fun for younger babies to grasp, hold, shake and explore. The littlest ring has a shiny, reflective surface for baby to discover insidewith colorful, swirling beads that make fun rattle sounds! When baby is ready to sit and stack, baby can place rings on the post, then bat at the wobbly base to make it rock back and forth. Stacking helps baby develop eye-hand coordination, and introduces baby to the concept of relative size as they learn to sort and stack from biggest to smallest!