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 them as a surprise gift for any occasion! Please note that these balloons will come flat and not inflated, you must inflate them yourself. The balloons measure as follows: 1 x 90cm (36") Masha and the bear - 1 x 99cm (39") Masha on a Bicycle. You will receive one of each balloon. 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 them as a surprise gift for any occasion! Please note that these balloons will come flat and not inflated, you must inflate them yourself. The balloons measure as follows: 1 x 90cm (36") Masha and the bear - 1 x 99cm (39") Masha on a Bicycle. You will receive one of each balloon.