this neutrik xcd coloured ring is a handy piece of equipment to own. the brown colour is good to help identify cables and can save time when searching through cable box. also seems to fit the newer xor plugs so great product.
Can be fitted without unsoldering the connector, just unscrew the plug or socket and slide over the plug shell, then screw it back together. Note on some non genuine plugs you might find they do not screw fully home with the rings fitted.