This ring for Rimbas penis is bipolar and is made of leather. It is adjustable thanks to its buckle, and has metal connectors inside. To fully enjoy this ring is well attached to the skin. Thanks to its 2.5 mm connector this toy can be used with all Rimba Power Boxes. It is not advisable to use it if you have sensitive or irritated skin, if you are pregnant or if you have heart problems. Features: Adjustable Leather