The second in the Black Collection is the Black Collection Medium. It is just that little bigger, offering that bit more of a stretch and a fuller feeling. This rounded and curvy BiPolar electrode is based on our popular Bobble electrode but that bit bigger to satisfy those wanting that bit more. Designed for Pleasure Like the majority of our Premium Electrodes the contact points are top and bottom rather than side to side, providing a more natural feeling action when the electrode moves and is suitable for both vaginal and anal stimulation. Quality at every level Featuring our luxurious Satin finish this smooth dual sphere, double waisted design means you have options. Insert it as far as the black insulator and feel the sensation focused at the opening or insert the second sphere and those tingles will be that bit deeper delivering the pleasure to uncharted areas. Produced to our usual high standards using aircraft grade materials all of The Black Collection will, if cared for, last for years. Every electrode is fitted with heavy duty 4mm sockets in the base. If you are considering longer term use, then we suggest using our Low Profile Cable as this is more comfortable and will allow for it to be either worn under underwear or sat on by the user without the fear of breaking a connector. Lifetime guarantee As with all of our Premium Electrodes The Black Collection are covered by our unique Lifetime Guarantee. Supplied in a re-usable protective storage tube.