Kensington A1020 Boom Arm. Product type: Boom microphone stand, Base type: Desk mount base, Product colour: Black. Width: 61 mm, Depth: 71 mm, Height (max) : 109.5 cm. Package width: 645 mm, Package depth: 340 mm, Package height: 105 mm. Packaging content: C clamp, boom arm, clip-On cable holder, Adapter 3/8” to 1/4” thread mount, Adapter 3/8” to.. Master (outer) case width: 100 mm, Master (outer) case length: 275 mm, Master (outer) case height: 285 mm