Size:Pack of 10 | Color:multicolour10pcs aeroplane shaped round about 33" pvc balloons can be hung for around the globe theme or airplane theme Brthday parties. Easy enough to inflate yourself with a regular drinking straw or have them professionally inflated with helium if you need them to float! These balloons can be filled with helium or air. It can float in air only if filled with helium. Please inflate the gass slowly until 90% filled and keep away from fire.