Skyball

The Sky Ball is a mid-sized bouncy ball toy sold by Maui Toys.

[1][2] Each ball measures 4 inches (10 cm) in diameter[3] and contains a mix of helium[4][5] and compressed air.

It has received critical acclaim for its high restitution, or bounciness.

[1] The Skyball is often compared to the popular 1965 Wham-O Superball,[6] with the Skyball being advertised as bouncing 75 feet (23 m), "higher than a 1.5 inch superball".

[2] In 2010, the ball was packaged with a plastic baseball bat, and advertised as flying as far as 300 feet (91 m) when struck.