Sling Rings

The Sling Rings, also known as Tethers, is an object that appears in the Sonic the Hedgehog comic series and its spin-off comic series published by Archie Comics. They are a set of rings that are joined together, allowing multiple people to hang onto others.

Description
Despite their magical nature, the Sling Rings are actually a form of technology. They resemble a set of golden rings (which bear a striking resemblance to Power Rings). When active, they are tethered together like a chain by a string of golden sparkles, though in some cases it can also appear as if they are connected by a solid energy stream. This energy between the rings are solid and extendable, allowing the rings to be stretched a certain distance apart and others to hang onto them like a rope.

Pre-Super Genesis Wave
A pair of Sling Rings were used by the Chaotix during the first incident at Happyland Amusement Park. When Metal Sonic v2.0 attacked the group, Vector used a Sling Ring to swing Knuckles into the robot for a hit. It failed however as Metal Sonic managed to grab the Sling Ring and attempted to use it against them. However, Vector managed to take control and used the Sling Ring to throw Metal Sonic at Mighty who landed a critical punch on him.

Post-Super Genesis Wave
The Sling Rings was one of the technologies the Chaotix had on them. When Knuckles' helped the group locate a Chaos Emerald, they used the Sling Rings to follow Knuckles through the airspace of Pumpkin Hill Zone. However, Charmy, who carried the Sling Rings and his team with them, was freaked out by Knuckles' true ghost stories along the way, forcing Knuckles to carry Vector and Espio with the Sling Rings. The Chaotix later used the Sling Rings again to follow Knuckles' trail of the Chaos Emerald into the Aquatic Mine Zone.

Trivia

 * Given that both Charmy and Knuckles was able to carry Vector and Espio in mid-air with the Sling Rings without trouble, it is possible that the Sling Rings negates gravity on the carrier's behalf.
 * The Sling Rings are based on the tethered Ring-game mechanic from the video game, Knuckles' Chaotix.