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. 1.65. and 1.85 inches in diameter; Sound: 5.5 inches in total length. 4.6 insertable. 0.3 inches in diameter Material: Stainless steel