Doughty Quick Trigger TV Clamp The Quick Trigger TV Clamp is supplied fitted with a 29mm diameter Receiver. This Clamp is designed predominantly to attach to round tubes or truss chords and suspend equipment and luminaries in the TV/Film industry. A large Easy-grip handle is fitted for ease of use. The spring-loaded jaws stay open and automatically close with the weight of the object being hung, leaving both hands free to lift and position the load. For any inquiries, please contact us via chat. Spec Sheet - User Manual - Cert Specifications: SWL: 200 Kg Tube Diameters: 38 to 51mm Width: 50mm Fixings: 29mm receiver Weight: 1.16 Kg Material: High tensile aluminium Finish: Polished Aluminum / Black Powder Coated Other Quick Trigger Clamps: Without Fixings: 25-38mm, 38-51mm (Standard/ Slimline), 48-80mm With Fixings (bolt & wing nut): 38-51mm (Standard/ Slimline), 48-80mm With an Eye: 38-51mm (Standard/ Slimline), 48-80mm With a Half Connector: 38-51mm With a 29mm Receiver: 38-51mm (Standard/ Slimline), 48-80mm