Made from 316L surgical stainless steel, this plug/urethral sound measures 6 inches in length and features waves dipping in and out along the shaft. It is available in 2 sizes:

1. Size Large is solid (no hole through the center) and 12mms at its largest point, and

2. Size Extra Large is hollow (you can pass fluids through the center hole) and 16mms at its largest point.