2021 Graduation Ceremony Balloon Set Blue and White Graduation Season 12 Inch Latex Balloon Set Material: Latex Weight: about 205 grams Quantity: 20 pieces of 10-inch metallic silver + 20 pieces of 12-inch navy blue balloons + 10 pieces of 12-inch silver sequins + gift (one 5M balloon chain + 100 glue points a roll + knotter) Use: Graduation party decoration. Reminder: Any balloon will not float when filled with air. It can only float when filled with hydrogen or helium. The cost of hydrogen is lower, but it is very dangerous in case of fire. When filling with hydrogen, keep away from the fire source. Inert gas, expensive, but very safe. Due to different light, different shooting angles, and different monitors, slight chromatic aberration will be caused.