Small Mus.Stand Plate With Arm - Dimensions: 31.5 x 24 cm / 12.4 x 9.4 in. - Clamp mechanism w/ lockscrew to attach to a stand - Clamp diam. 14 - 35 mm / 0.5 - 1.75 in. - Weight: 1.05 Kg / 2.3 lbs