Bouncy ball

They were fundamental to the development of American street games such as stickball, in addition to other uses in play.

A superball or power ball is a bouncy ball composed of a type of synthetic rubber (originally a hard elastomer polybutadiene alloy named Zectron) invented in 1964, which has a higher coefficient of restitution (0.92) than older balls such as the Spaldeen so that when dropped from a moderate height onto a level hard surface, it will bounce nearly all the way back up.

They were first sold by the Wham-O toy company under the name Super Ball, which remains their trademark.

Skyball is a brand of hollow medium-sized bouncy ball filled with a mix of helium and compressed air, claimed by the manufacturer to have particularly good bounce characteristics.

Due to their low cost per unit, bouncy balls with logos or other designs are sometimes used as promotional merchandise.