Ouch! Glow in the Dark, the future of bondage is here. Designed with an authentic bondage aesthetic, but with the added delight of the glow-in-the-dark properties, the fluorescent green detailing will turn every event into a party. With Ouch! Glow in the Dark, the fun is just beginning when the lights go out. Its time to pump it up with this classic penis pump! Squeeze the little ball to activate the vacuum. The more you squeeze, the tighter it will be! The design is ergonomic and comfortable and will bring you the right effects. Ouch! Glow-In-The-Dark products must be activated with the sunlight before enjoying it in the dark.