About this item √ Non-Heliumn. Our package including Glue dot ,only need inflate air and paste √ Mix Combination Kit 40pcs including 5" 10" 18" mylar balloons Gold ,silver,white star foil balloon combination √ Reusable.our foil star balloon is self-sealing design ,Insert the straw into the balloon inflation valve to release the gas, which can be used next time. √ DIY work .It`s easy for kids free diy combination ,if you like star backdrop it`s a good idea on your party decor √ For any Event…