Prostate Stimulators

"Prostate massagers are sex toys whose design allows them to provide stimulation to the prostate, a walnut-sized gland located between the bladder and the penis. As the prostate is positioned just in front of the rectum, prostate massagers are inserted anally. 
Often prostate massagers feature a tapered tip and a rounded head- this makes insertion comfortable and helps to locate and stimulate the prostate."