Rockabye Gracie The Hippo Ride On Our rockers are made to last decades, not just years. They are sponge washable and easy to maintain. The rockers average 24"L x 12"W x 17"H in their shipping box, so the actual size is slightly smaller than that to fit in our box. They are designed for children ages 9 months and up. They accommodate children up to 80 pounds. Each rocker features four educational songs, written composed and performed by Rockabye. Rockabye has a mission to redefine the classic rocking horse for a new generation of babies and toddlers. With fresh cuter than cute designs, the highest quality fabrics from around the world, high quality North American maple hardwood, hand crafting in our American factory and Made in the USA quality make Rockabye baby and toddler rocking animals far and away the highest quality, best selling, safest rocking toys in the world.