The ProX Headphone Pole Stand is designed to attach to the vertical edge of virtually any DJ-equipment flight case. After you open the case to set it up for an event, the pole can easily be clamped anywhere along the edge via an integrated wingscrew clamp. You can attach it where you find it most comfortable for you. It's 12" in height, made of metal, and it has a rotating hangar bar on top, so you can further adjust it as needed during your performance. It holds all standard over-ear headphones.