The Humm Dinger Night Rider is a vibrating cock ring that fits all users for intense mutual pleasure! If regular sex feels good, sex with a humm dinger feels awesome! Simply slide the stretchy ring over the male partner's erection over a condom if one is being used, with the vibrator positioned on top. Each thrust will send waves of pleasurable vibration directly onto his partner's clitoris! The Humm dinger Night Rider also glows in the dark for fun that will light up the night! The included batteries are non-replaceable and last approximately twenty minutes. This disposable cock ring can be shut off to preserve power between uses. Color: Glow in the Dark Green. Type: Vibrating Cock Ring. Materials Silicone, Plastic. Size: One Size Fits Most. Special Features: Batteries Included, Glow In The Dark. A water based lubricant is recommended. Cock rings when worn around the base of the penis and testicles, many users find that cock rings increase sexual pleasure. Prolong rings, erection enhancement, climax control rings, cock rings. Always clean before and after use. Humm Dinger Vibrating Cock Ring Glow-in-the-Dark from Hott Products. New image. 2021.