Colorful Inflatable Mirror Ball Reusable Big Shinny Balls Large Event Decoration Balloon PVC Disco Bubble Balloon with Electric Pump for Party, Wedding, Decor (1 Piece, 0.5M/19.7In). Note 2: 50CM decoration ball includes an electric pump, not only can you inflate this product, but also can be used for floating docks, inflatable gymnastics mats and other inflatable products, no need to buy a separate pump.