Old stock but new and unused. 

Specific to certain inverters or can be used to join any 4mm solar cable

See the link for data:  https://www.mouser.co.uk/datasheet/2/18/HeliosH4customerdrawing_120524-1157884.pdf

Very high quality solar connectors

Pack quantity is 6 Male plugs and 6 crimp terminals - see other items for compatible Female terminals

Contact me if you want more than 1 pack as I will combine postage where possible

Contact me if you have any other queries