26009 Extra Heavy Cast Iron Base Plate 300mm with M20 TreadExtra heavy cast iron base with 300 mm diameter. The threaded connector M20 x 1. 25 mm fine thread is suitable for all K&M microphone stands with round base. A circumferential rubber ring absorbs the impact sound and reduces unwanted transmission noise. Powder coated black structure. Product Features Extra heavy cast iron base 300mm Diameter Threaded connector M20 x 1. 25 mm Suitable for all K&M microphone stands with round base Circumferential rubber