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Detention-spheres are technology from the Generation 1 continuity family.

A detention-sphere is a device that, when activated, generates a force field around the beings nearest it. It is commonly used to capture others.

Fiction

Regeneration One

When the Wreckers were brought in to capture a group of Neo-Decepticons, Springer used a detention-sphere on the Insecticons Venom, Chop Shop and Ransack. Loose Ends, Part 1