Kirk's heavy-duty, ball-head Multi-Purpose Window Mount combines compact convenience and versatility with the sturdy precision of a quality tripod. This rugged support is ready to handle lenses up to 800mm. Use it clamped inside your car window; or as a sturdy "lowpod" for resting on a table, car roof, or flat rock; or wherever you are working in a confined space. It accepts any 3/8 inch size tripod head. This versatile mount is made of black anodized 6061-T6 aluminum with rubber-covered feet and easy-to-grip controls.