Main Features:31/787mm Tower for Frameworks ID Series Creator Tree SystemCompatible with All Vertically Mounted ID Series Creator Tree Accessory Arms & 41″/1041mm CrossbarSecurely Clamps to Desks, Tables & Similar-Sized Surfaces 2.15/55mm 3.3/84mm Max in ThicknessMic Boom Arm Mounting Point at Top (0.6/14mm ID) with Removable End Cap & Position Lock KnobHardware IncludedClamp Range: 2.15 3.3 (55 84mm)Product Dimensions (Including Desk Clamp): 4/102mm (L) x 4/102mm (W) x 36/914mm (H), Net Weight: 5.2 lbs./2.4 kgSpecifications:Ext Width: 4.00Ext Height: 36.00Weight: 5.20lbs