The Falcon Eyes LSB-3 Light Boom + Light Stand + Sand Bag is supplied with a Tube Clamp, which is compatible with all light stands with a diameter of 3 cm. The included tube clamp allows you to position the arm in various positions to suit your needs. The supplied sand bag acts as a counterweight and is hung from the hook located on the end of the light boom. The included boom arm is equipped with a 3/8” male screw thread. If you require a ¼” screw thread, the SP-4M8F Spigot Adapter is available in the optional accessories tab below. The LSB-3 for example, allows you to hang your studio lighting above the subject you’re shooting, without being visible in the photo or video. The LSB-3 also provides you with greater freedom of movement around the studio or on location. The LSB-3 is supplied with a carry bag, enabling you to easily take the LSB-3 to and from location.