These Bluey balloons are amazing for children's parties! These balloons have an automatic sealing valve. They can be filled with air so they can be fixed to the wall or can be filled with helium so that they float. These balloons will make a great decoration for your Children's party. Or buy as a surprise gift for any occasion! Please note that these balloons will come flat and not inflated with either air or helium, you must inflate this balloon yourself. Mackenzie measures approximately 35 inches, Coco measures approximately 36 inches and Indy measures approximately 31 inches.