Kink Vibrating Silicone Butt Plug Ridged 8 inches Black. Extreme in size and strength, this vibrating silicone butt plug is ultra strong and whisper quiet, with ten powerful functions of deep, rumbling vibrations. The graduated shape lets you take in the sizeable length at your own pace while the tapered tip and ridged design adds extra pleasurable stimulation. The one touch handheld remote is easy to use, whether it is in your own hand or your partner controls the fun. Color Black. UPC Code 782421059514. Total length 8 inches, insertable, usable length 7 inches, width, diameter 3 inches, circumference 9 inches. Functions 10. Materials ABS plastic, Silicone. Kink by Doc Johnson is an exciting collaboration with Kink.com to create a collection of high quality authentic fetish items suitable for long-term practitioners and new initiates alike.