Stairville Truss Adapter 36mm for 2P, 2-Point Truss Adapter, With patent lock for trusses with 50 mm main tube, For vertical mounting of 2-point trusses, Height adjustable from 25-29 cm, Suitable for all stands with 36mm tube diameter (almost all speaker stands), Ideal for quick assembly / disassembly, No tools are required, Easy fixation of the adapter to the tripod by using a plastic handle screw