This small device allows you to take each of your individual wires from you leads and turn them into a splitter making two positive and two negative wires to power four electrodes.  :)

All you have to do is slightly strip back a small portion of your DIY wires and place them into the clips and after secured, press down the open clip and it bites the wire down securely.  You can take TENS pins from you lead wire and insert them into one of the two color coded clips and press and lock them in. 

For those customers who are into and understand the Tri-Phase connections, you could easily take your common wires from each channel and use any number of tri-phase hook-ups you want (1, 2, 3 or even 4) if you want.  Might prove to be quite interesting!!

Hey, if you wanted to use these for 110 wiring around the house, these would work very well too. Might be handy to have a few of these in your tool box for around the house handyman activities.  :)