They are very simple to use, just insert one wire per hole and then squeeze down using pliers, each crimp will join a maximum of 3 wires. There is no need to strip the wire as the IDC connection in the crimp does that for you.
100 x 2 wire jelly crimp telecom connectors 8a for Dropwire/telephone/broadband
100 x 8B 3 WIRE TELEPHONE JELLY CRIMPS TELECOM CONNECTOR as Used by BT, Virgin
100 x GENUINE 8A 2 WIRE TELEPHONE JELLY CRIMPS BT VIRGIN TELECO CONNECTOR JOINER
100 Genuine 8B 3 wire telephone jelly crimps BT Virgin telecom connector joiner
