These colorful flowers are can't float up when you full with helium,because it's small size 16inch. They also look very beatiful when you stick they in wall.High quality foil, Thick and Durable. Easy to inflate with air. Include different color like picture.The color will be better after inflation. Please be aware of safety in use balloons, avoid overfilling the balloon, sunburn, overheat, pointed object , over friction and be splashed by the acidic liquids such as lemon juice. Strong wind or over clap may cause the burst of balloons.Metallic balloons are perfect for wedding, birthday party, graduation party, proposal, anniversary celebrations, carnival party, holiday party, Christmas party, Halloween , Easter party, baby shower parties, Little Mermaid party, etc.