Tork VIBRATING RING delivers a potent vibration through a single motor. This reusable vibrating ring will satisfy any sexual appetite. Made from smooth silicone. This sleek design is made to fit any length or girth. 7cm long, 3 cm inner diameter e or approximately 2.75 inches by 1.25 inches. Requires 2x button cell batteries (included), and has a running time of 40 minutes. Just Black.