You never know when you're going to get some action, so you better be ready when you get the call! Introducing the Cocktrainer, the world's first stamina-training masturbation device developed to prevent premature ejaculation and help you perform like a pro!

The Cocktrainer stroker includes a stretchy silicone cockring that features a built-in motion sensor to monitor and count your strokes. The super-tight masturbator will increase your endurance, prolong ejaculation, and ultimately extend the fun when it's time to perform.

Unlike ordinary cockrings and masturbators, the Cocktrainer features a hidden trainer to monitor your strokes and help motivate you. The easy-to-read LED screen displays a clear digital readout, and the ring can be removed from the masturbator and slid on your cock to help maintain thick, throbbing erections.