ABOUT Ages 10 months to 3 years Nest, tumble, WOW! Each TumbleRoo features a weighted base for wonderful wobbling and a concave top for nesting. Nest the smallest inside the other two - the moment you let go, the whole stack tips over and they all tumble apart to rock and wobble around and around. Little ones can't wait to nest and tumble again and again! BENEFITS Nesting, tumbling, wobbling fun!Fine motor skillsSpatial reasoningSequencingCause and effectExperimentationSelf-directed playBPA-freeHigh-quality construction OUR PROMISE Fat Brain Toys has always been focused first and foremost on each toy's safety and quality of craftsmanship. All of our creations are tested many times over to ensure both parents and children get the best experience possible. By working with brilliant inventors and designers from all over the world, we are continuously establishing entirely new trends and creating innovative, contemporary designs that are sure to inspire creativity and spark curiosity. OUR DIFFERENCE Fat Brain Toys designs unique toys and games that inspire learning through pure, authentic play. Since 2002, Fat Brain Toys has been a family owned and operated toy company based in the heartland of America - Elkhorn, Nebraska. Our toys have appeared in USA Today, Consumer Reports, Real Simple, The New York Times, and on NBC's Today Show and ABC's Good Morning America. We utilize safe, innovative materials in combination with modern designs to create toys that are as entertaining as they are educational.