REUSABLE AND HIGH QUALITY: Large 4D foil balloons are made from nylon foil, which is durable, stays inflated for a long time and reusable. Ideal balloons for women's birthday decorations, rose gold decorations, rose gold decorations for birthday, wedding bridal shower, women's party decorations HOW TO MAKE IT ROUND: There will be a crease when the 4D balloons are only 80%. When the crease appears, please continue to inflate SLOWLY and stop inflation when it becomes round and full. Please DO NOT overfill the balloons. These balloons can be filled with air and helium. 4D balloons float when filled with HELIUM ODORLESS: 4D balloons are odorless and brightly colored, which is ideal for bachelorette party decorations, decorations bridal shower, rose gold party decorations, bachelorette party supplies, rose gold birthday decorations, rose gold party supplies, party decorations for women, bride to be decorations , party decorations for girls APPLICATIONS: These rose gold balloons, 4D foil balloons are perfect for birthday party decorations, rose gold decorations for party, bridal shower, baby shower, women's birthday decorations, decorations rose gold, bachelorette party supplies, bachelorette decorations, birthday decorations for girls