This penis plug is made of Teflon for a relaxed insertion. The rounded tip supports the application. With water-based lubricant, it is even more enjoyable. A moveable glans ring is attached via a bow. This keeps the plug without hands in position. Dimensions: The ring has an inner-diameter of 25mm. The space between ring and plug is 9mm. The gap between the ball and the plug is 5mm. The bow is 2.5cm high (measured from the middle of the ball to the inside of the curve). Plug Length: ca. 7,6 cm (3")Total Length: ca. 9,3 cm (3.7")Bow Height: ca. 2,5 cm (0.98")Diameter Ring: ca. 25 mm (0.98")Diameter Plug: ca. 8 mm (0.31")Material: Stainless Steel, PTFE (Teflon)Color: Black