Kids Preferred presents this charmingly detailed activity toy featuring a 7 inch stacker with five colorful rainbow wooden rings and The Very Hungry Caterpillar to top it off. Introduce the youngest member of the house to The World of Eric Carle The Very Hungry Caterpillar. Eric Carle is one of the most celebrated children's book authors and illustrators of all time, with over 103 million copies of his books sold worldwide. Inspired by the classic book, this toy will keep little ones entertained, happy, and soothed with multiple features that are great for interactive play.