When you're looking for a toy that can be used for stamina training and still deliver the kind of stimulation you crave, look no further than Boner-2. With 10 different vibrating patterns, including unique ones like "throb," "plunge," and "surge," this toy lets you experiment with all kinds of sensations. And if you're looking for something that's more than just a vibrator—something that can also help your partner stay in shape? This is it. The raised texture on the side wall massages your glan and the most sensitive area to reach new levels of sexual gratification. The 4.1-inch long, flexible fit makes this toy perfect for larger cocks as well as smaller ones. It's waterproof, so you can use it anywhere—in the shower or bathtub! And it's ultra-portable, so you can take it with you wherever—from the bedroom to an airplane bathroom!