Bubble

A bubble is a mostly spherical hollow, and usually transparent object. In water, bubbles are formed by gases in the liquid.

Superman created a glass bubble using lava from the volcanic island known to the natives of Bora Bora as Malaba. He used it to transport Flash, Aquaman, Marvin, Wendy, Wonder Dog and Kolbar to the planet Solar Terrarium, and all but Kolbar back to Earth.

Appearances
Super Friends
 * Season 1: Too Hot to Handle