Definitely accurately named, the Diabolic Erection Enhancer is a deviously pleasurable treat from the fetish-geared Master Series collection. Taking the classic cock ring several steps further, this soft, stretchy one-piece ring and stimulator combo fits securely over the base of the penis and around the testicles, keeping the unit in question contained, firm and supported. Along with those obvious benefits, the Diabolic boasts a perfectly placed perineum stimulator in the shape of a curvy sphere. Once the rings are in place, the softly precise nub rests against this key male erogenous zone, massaging with movement and providing subtle yet relentless pressure. Made from soft, safe thermoplastic rubber, this device is nice and flexible, conforming to the contours of the wearer’s body. It warms quickly to match body temperature for a natural feel, and can be enjoyed with either a water or silicone based lube. Fits most.