This Neutrik XCR coloured ring is a handy piece of equipment to own. The orange colour is good to help identify cables and can save time when searching through cable box. Also seems to fit the newer XLR plugs. A great product.
These rings can be fitted without unsoldering the connector. Simply unscrew the plug or socket, fit the ring and screw it back together. Note that on some non genuine connectors the inner part of the plug will be loose in the housing because the extra thickness of the ring causes the cable clamp not to screw fully home.