Shipment contents: 1 large 40 cm balloon (defined); 1 piece/package | Premium material: improved aluminum foil material, thicker than regular balloons, not easy to burst and leak, easy to inflate and not explode; bright colors, add shine to your party | Details: There are holes at the top for easy organizing and hanging; self-sealing, no need for balloon string; can be used repeatedly | Applicable gas: this film balloon is suitable for inflating with helium or air | Usage scenes: very suitable for party decoration, such as weddings or birthdays, bachelor parties, baby showers, beer parties, engagements, anniversaries, Christmas, banquets, etc.