"Whistle your way to hours of fun with the Phlat Ball Whoosh toy. Take your playtime to the next level with this super-cool transforming ball. Before you throw, squish it down into a disc shape. Then, watch it spring into a ball while in the air! This Phlat Ball features a whistling sound, making your next game of catch even more fun. Like all Phlat Balls, the Whoosh is made from a soft material for extra comfort. It comes in bright red and yellow, making it easy to see when in the air. For ages 5 and over."
Phlat Ball Woosh