Sling Rings

Sling Rings are artifacts resembling Power Rings that possess the unique property to create energy links between themselves.

History
Knuckles the Echidna, the Chaotix, and Mighty the Armadillo employed the Sling Rings during their team confrontation with Dr. Eggman and his forces. The Chaotix apparently retained their Rings and later used them to allow Charmy Bee to carry Vector and Espio over long distances. Vector disliked this system, though Espio preferred it to trusting Charmy to carry the two of them by his own power. When Charmy inadvertently dropped his Ring in flight over Pumpkin Hill Zone, Knuckles was able to catch it and carry Espio and Vector to safety. (KC, SU: #63)

Background Information

 * The Sling Rings are from the game Knuckles' Chaotix, and are also known by various names such as Tethers or Link Rings.