Features This?screen?printing?hinge?clamps?is?used?compatible with?fixing?screen?frame?when?it?is?printing Feature a wide-wing thumbscrew compatible with firmly fastening the clamp to the frame. Use?to?secure?your?screen?frame?to?a?table?or?work surface. These clamps also feature positive locking compatible with perfect registration. Easy to install and positive locking compatible with perfect registration. Features: This screen printing hinge clamps is used compatible with fixing screen frame when it is printing Feature a wide-wing thumbscrew compatible with firmly fastening the clamp to the frame. Use to secure your screen frame to a table or work surface. These clamps also feature positive locking compatible with perfect registration. Easy to install and positive locking compatible with perfect registration. Specification: Material: Metal Weight: 401g Quantity: 2pcs Color: Silver Surface Treatment: Color-plated zinc Size: 85*85*60mm/3.3*3.3*2.4in Package Includes: 1 pair x Butterfly Hinge Clamp Note: 1. Please allow 1-m error due to manual measurement. Thanks compatible with 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. Package List