K&M 26709 Round Weight Plate for Speaker Stands - 5kg (Black)Separate weight plate to increase stability, for speaker stands with M20 base plate. The plate has a diameter of 325 mm and a thickness of 8 mm. There is an additional bore hole for a cable bushing. Self adhesive rubber buffers ensure non slip, low noise operation. The weight is 5 kg. The weight plate can be mounted easily without any tools. Several plates can also be stacked onto each other. Specifications Bore holes: diameter 43. 5 mm (2 x)