Vibrating masturbation toys for men add stronger vibrations to the classic rubbing tease. These usually act on the glans or the body of the penis, or rarely on the male testicles. More expensive models may also have multiple vibration motors built in, or they can do so-called pulses, or unique up and down vibrations. The vibrations during wanking increase the pleasure of play and usually accelerate the onset and strength of male orgasm.