The Animals Friends Jumbo Roller helps your child build balance and strength as they grow from infants into active toddlers. Over 16 inches long, the jumbo roller encourages tummy time and helps aid in crawling and standing, offering support and aiding movement. Vibrant colors and adorable critter designs will catch kids' attention as they interact with the jumbo roller. With rattling balls inside the roller, make a fun game of steering the balls through the opening and watch them descend from layer to layer. For ages 6 months and up.