Features:This screen printing hinge clamps is used for fixing screen frame when it is printingFeature a wide-wing thumbscrew for firmly fastening the clamp to frame.Use to secure your screen frame to a table or work surface.These clamps also feature positive locking for great registration.Easy to install and positive locking for great registration.Specification:Material: Zinc Alloy, Chrome Plated Outer LayerWeight: 401gQuantity: 2pcsColor: SilverSize: 85*85*60mm/3.3*3.3*2.4inPackage Includes:1 pair x Hinge ClampNote:1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard..