Thomas the Tank Engine UltraShape Cubez is a 4 sided foil balloon. Perfect decor item for a Thomas choo-choo train themed birthday party. UltraShapes Cubez - a new angle on balloons! These Cubez will give your bouquets and decorating some added dimension. This balloon has a different front and back. Click on the thumbnails above to see the Thomas train balloon images. Balloon arrives un-inflated. Measures: 15 in. x 15 in. The balloon can be air filled or helium filled and also a refillable. Made in USA.