The Fisher-Price® Rock-a-Stack® toy is classic, colorful fun for your little one! Younger babies will love grasping, holding, shaking and exploring the five colorful rings. The littlest ring has a shiny, reflective surface for baby to discover inside—with colorful, swirling beads that make fun rattle sounds! When they're ready to sit and stack, babies can place the rings on the post, then bat at the wobbly base to make it rock back and forth. Stacking helps them develop hand-eye coordination and introduces them to the concept of relative size as they learn to sort and stack from biggest to smallest! Features: Fisher-Price Rock-a-Stack 5 colorful rings, perfect for grasping and stacking Bat-at rocker base Top ring has shiny surface with rattling beads inside Introduces babies to relative size and stacking Helps with Fine Motor, Sensory and Curiosity & Wonder 6+ Months Product Code: 34855 Using Product Information: While every care has been taken to ensure product information is correct, food products are regularly reformulated, so ingredients, allergens, and other information including nutrition, may change. You should always read the actual product label carefully and please do not rely solely on the information provided on the website.