High quality product as used by BT engineers, made by DexGreen. The wires do not need to be stripped as the IDC connection in the crimp does that for you. They are very simple to use, insert one wire in each hole and just squeeze down using pliers.
500 Genuine Dexgreen 8A 2 Wire Crimps Connectors + Jelly Crimp Tool by Mills Kit
500 Genuine Dexgreen 8A 2 wire jelly crimps connectors and Jelly Crimp Tool Kit
1000 x GENUINE DEXGREEN 8A 2 WIRE JELLY CRIMPS BT VIRGIN PHONE CONNECTOR JOINER
1000x Genuine Dexgreen 8A 2 wire phone jelly crimps BT Virgin connector joiner
500 x DEXGREEN TELEPHONE JELLY CRIMPS INSULATED WIRE CONNECTORS 8A/1 2 WAY NEW
CRIMPING PLIERS TOOL FOR 8A OR 8B JELLY CRIMP WITH 30x DEXGREEN 8A 2 WIRE CRIMPS