Attachable to speakers. Slip-on adapter for speaker stands with tube-diameter 35 mm. With 2 drill holes diam. 11 mm at intervals of 115 mm and locking device. Mounting bolts M10 x 40 mm, washers and nuts (2 of each) included. Dimensions: 146 x 40 x 105 mm. Function: to screw on speakers, to slip on stand. Material: steel. Weight: 0,56 kg. Finish: Black