Welcome The Very Hungry Caterpillar™ to your Eric Carle birthday party! Featuring everyone's favorite critter, these cheery mylar balloons give a literary air to your celebration! Fill them with helium and attach them to bags of party favors for the best day - and event décor - ever! (3 pcs. per unit) 17 1/2" x 17 1/2" © OTC / ™ & © 2016 Eric Carle LLC. All rights reserved.