The concept is great, the product is not! I read the instructions a number of times-there is not that much to read. If you do not want to shave you pubic hairs and do not want sore skin stretch rings from your shaft skin getting caught in the bottom rubber suction device-then do not get this. ALSO-it's not a "gentle" pushing towards the shaft to create suction either, my pubic mound became rather sore as well!
Too bad-would be better if it were like a regular pump that could use water-I'd pay more for that! right now, my lover said I look like I screwed a sharp tin can!