Heart Balloon Copper Satin Luxe Foil Balloon Round - uninflated. This beautiful foil balloon in "Satin-Luxe" appearance is perfect for all events. The elegant metallic shimmer of this balloon adds a special touch to your occasion! Size: 43 cm when uninflated. Material: coated foil balloon. Suitable for: air and helium fillings. Helium requirement: 12 liters for 1 balloon. Max. floating time: 5-10 days with helium / several weeks with air filling. Load capacity: approx. 2-4 grams. Tip: You can refill with breath through the adhesive valve using a straw. This will restore the balloon's full tension. Give it a try and extend the floating time! Valve: integrated automatic sealing valve (inflate - press valve - done), repeatable several times.