Large size Smile Face Rainbow Foil Balloons double size Happy Birthday Wedding Decoration Globos balls Have A Nice Day kids toys Size before inflate:91cm*70cm Material:Foil balloons Balloons color: As picture Item type:Cartoon balloons Occasion: Birthday, wedding 1. Our size is flat size before inflate, after inflate, the size will little small than that. 2. Each foil balloon has a tail, there is a hole in the end of the tail. You can inflate it from there. 3. The balloons have self sealing valves. Once inflated the balloon will stay up for over a week. 4. The balloons can be filled with helium to float or filled with air to attach to any surface, The balloon will come flat and need inflating after you receive it.The balloon sold without Helium. 5. When inflate the balloon, it should be slow and careful in case of the over inflating. Double size design