Check the listing for details. 8 Pack 330lbs Heavy Duty Stage Lighting Clamps DJ Light Truss Clamp Set Black. Color: Black, Condition: New. Listed at 89.68 USD. Condition:New Colour:Black Material:Aluminum Alloy Material: Aluminum Alloy 6063 Button Type: Single Ring Buckle Applicable Tubing Diameter: 40-52mm (1.57-2 Inch) Applicable Hole Diameter: 10mm Maximum Load: 150 Kg/330Lb Scope Of Application: Truss / Engineering Frame 40-52Mm Product Size: 17.5*14*3cm Features: - Heavy Duty Aluminum Alloy Material Stage Light Hook Clamp - Quick And Easy To Attach, Remove Or Re-Position Of Your Light - Completely Wrap Around Truss For Added Security And Stability. - Suitable For Security Lights, Stage Lights, And Other Light With 10mm Diameter Install Hole - Ideal Using In Stage, Dj, Bar, Pub, Event, Theater, Disco.... Heavy Duty 150kg Single Ring Buckle Stage Light Hook Clamps. Fit 40-52mm (1.57-2 Inch) Pipe Od, 10mm.