Product Description: 🎈Material: These large 4D balloons are made of good quality aluminium foil, make the surface bright present like mirror reflect. 🎈Size: Each foil round balloons is about 22" Before Inflation, 15.7" 🎈Floating: You need helium for floating round foil balloons. Just fill 80% of the balloon’s space that could allow the balloon to expand completely. 🎈Self-sealing: The foil sphere aluminum foil balloon could self seal after inflate, without extra operating. Make air out when not use, then you can reuse it many times. 🎈Party Décor: Beautiful 4D foil balloons in bright color to make your party most memorable, which is perfect decorations in birthday, Christmas, wedding, graduation or other party. *Note: The balloons come uninflated*
