Adhesion Disc

Adhesion Discs were special climbing tools developed by the Rebel Alliance for use by Alliance Special Forces. A complete set included hand, foot and knee discs, and could be used in conjunction (worn over) other climbing tools like climbing boots, gloves, or climbing suits. The discs worked by use of molecular electric cling in order to stick to any surface.

Sources

• Rules of Engagement: The Rebel SpecForce Handbook (First mentioned)