Urethra Sound Cvd style. 10″, Stainless Steel. Each size round at the end and is larger than the other. The smallest being 1 1/6″ of an inch and largest 5/8 of an inch. Primarily used to clear blockages in the Urethra. The kinky medical fetish ads simply more fun to it… Please use with caution. Sold as adult novelty item only.