Penis clamps are designed to treat male incontinence by blocking the flow of urine through the urethra. Men that have urinary leakage have found incontinence clamps a useful solution. Incontinence clamps prevent urine leakage by applying light pressure around the penis. Read the detailed description of J Clamps, Cunningham Clamps, and Dribblestop Clamps before making your decision about the penile clamp that is right for you.