Thomas & Friends Chugging Your Way mylar (foil) balloon featuring everyone's favorite Thomas the Tank Engine along with his two best train buddies, Percy the green engine and James the red engine, who are chugging full steam ahead. This balloon is a great item to decorate the Thomas train theme birthday party room. Measures 18 inch (round), double-sided and uses Xtra Life technology. Ready to inflate with helium air. The balloon is sold un-inflated.