A solid, highly effective tool from Falcon, ever-innovators of male pleasure, the Glass Cock Ring is a unique, extremely durable functional accessory to increase both duration and strength of an erection. Supremely effective when worn up against the body with testicles positioned inside the diameter, the incredibly firm feel and excitingly subtle nodules along the circumference keep you tightly reigned in with just enough constriction. Made from borosilicate glass, this ring is solid and ultra hardy, standing up to the roughest play, maintenance is almost non-existent, simply keep your ring away from abrasive surfaces that could scratch or chip the surface. On this note, it's a good idea to inspect the ring before sliding it on, but some (pretty intense) in-house testing here has revealed that there's not much throwing around, dropping and stepping-on that the Glass Cock Ring can't take. Available in 3 sizes for the most perfect fit, this version is 45mm (1.77 inches) around, and is the midpoint size, perfect for novices. As with any cock ring, follow basic safety precautions, remove if you feel discomfort, and don't keep your penis constricted for longer than about a half hour.