This Rock Exotica NANOSWIVEL is the lightest load-rated swivel available. It features an integrated rubber o-ring that holds it snugly in place on most carabiners. There are a lot of people who configure this onto the bridge of their harness.
The Nano is one of the lightest load rated swivels available, and features a thrust bearing to provide a compact form factor. The connection eye uses an integrated rubber o-ring that holds the Nano snugly in place on most carabiners.
Weight: 2.00 oz (57 gm)
Breaking Strength: 23 kN
Working load: 3 kN