Insertable Female RingsThese are large e stim electroconductive rubber rings with a standard 3. 5 mm snap connector. The conductive rubber is 8 mm diameter and is 350 mm long. They come with a smaller ring so you can adjust the insertable size to your own preference. Keep it thinner for anal insertion, thicker for vaginal, or up to you! They would also work well to go both around the scrotal and shaft bases at the same time, paired with anal. So many pleasurable