Seesaw

A rocker is a rocker device, mostly in children's playgrounds. It consists of an upright stand, about at head level of the players, in a vertical plane with a rotatably mounted bar with handles on the ends. Rockers with a lesser height only consist of a rotating board to the appearance, similar to a spring-board in the artistic environment.

Rockers that are in publicly accessible areas, must ( like all other playground equipment ) of the playground equipment standard EN 1176.

In the United States of rockers today are usually entered swing mounts for safety in the place.