The leather strap buckles around their head, and with the stainless steel dual ring placed in their mouth, keeping it wide open, your lover is prepared to receive. Enjoy the feel of their tongue and throat on your shaft. Measurements: Mouth Ring has 1.69 inch internal and 2.13 inch external diameter, Rings are spaced 1.04 inches apart, Leather Strap adjusts from 15.5 to 21.25 inches around and is 1.1 inches wide. Material: Leather, Stainless Steel. Color: Black.