The Humm Dinger Night Rider is really a vibrating cock ring that matches all users for intense mutual pleasure! If regular sex seamless comfort, sex having a humm dinger feels awesome! Simply slide the stretchy ring within the male partner's erection (more than a condom if your are getting used) using the vibrator positioned on the top. Each thrust will be sending waves of enjoyable vibration directly onto his partner's clitoris! The Humm dinger Night Rider also glows at nighttime just for fun which will illuminate the night time! The incorporated batteries are non-replaceable and last roughly 20 minutes. This disposable cock ring could be turn off to preserve power between uses. Color: Glow at nighttime Eco-friendly. Type: Vibrating Cock Ring. Material: Jelly, Plastic. Size: One Size Fits Most. Special Features: Batteries Incorporated, Glow At Nighttime. A water lubricant is suggested. Cock rings when worn around the bottom of your penis and testicles, many users discover that cock rings increase sexual satisfaction. Prolong rings, erection enhancement, climax control rings, cock rings. Always clean pre and post use. Humm Dinger Vibrating Cock Ring Glow-in-the-Dark from Hott Products. New image added Feb 9, 2013