Crossbar. Attaches to lighting / speaker stands with extension tube diameter of 35 mm, easy-to-use locking screw fixing. Aluminum cross bar with 4 boreholes for up to 8 spotlights. Optional corresponding screw fitting set 24621 available. Dimensions diameter: 36 x 1,230 mm. Max. load capacity: 20 kg. Weight: 0.65 kg. Finish: Black Anodized