This adjustable sounding cage will hold your cock upright as the hollow urethral insert slides deep inside. The floating sound is capped with a ball, and features a hollow core for liquid to pass through. Each ring is hinged for a better fit, and an Allen wrench is included so that you can clamp the insert in place once you have reached your desired depth. Measurements cage 6 inches in total length, rings measure 1.25 inches, 1.65 inches, and 1.85 inches in diameter. Sound 5.5 inches in total length, 4.6 inches insertable, 0.3 inch in diameter. From XR Brands.