Hire Production Essentials Rigging Couplers and Clamps Doughty Universal Joint£5 / £10 Gaffer Clamp£5 / £10 Gravlock £10 / £10 Swivel Coupler £10 / £10 90º Coupler£10 / £10 Eye Coupler£10 / £10 Doughty T57340£10 / £10 Boom Arm£10 / £10 MULTI HEAD Spigot Adapter £10 / £10 48mm Receiver £10 / £10 Manfrotto Super Clamp£10 / £10