Flashing led balloon: Material:rubber.7 color of LED light with 2pcs of AG5 button batteries,mixed 5 color packing. Size:30cm. Balloon, Ideal for Party, Wedding, and Festival decoration, Customized Designs are WelcomeMaterial: rubberSize: 9, 10, 11, and 12cm etcAny color is availableCustomized logo is acceptedSuitable for promotional gifts Flashing led Balloon for kids promotional toy gifts