These stainless steel balls can be slipped over 4mm conductive rubber where they act as amplifiers, concentrating the electrical current. They are often used on coronal cock rings where they can be used to focus the e-stim signals into the glans. Sized for 4mm Conductive Rubber Tubing for e-stim or tens electrodes.

Each pack contains three stainless steel balls, these are great for use on your own cock loop electrodes.

Sized for 4mm conductive rubber. Sold in packs of three.

Note CR shown for illustration purposes only. Balls supplied without CR.