They are your prisoner and even in the dark, you want them to remember that! The Ouch! Glow-in-the-dark Cock Cage is a glowing reminder of how painfully pleasurable submission and/or arousal might be when you wear it. 3.5 inches of firm silicone cages the penis of your choice with plastic and metal locks. Hide the key that unlocks the cage, or dangle it just out of reach during your session. Health and safety stay at the forefront with multiple air vents and a urination slot so you can play worry free. Add up to 4 plastic ball rings to create the perfect fit and enjoy watching them glow with desire.