Features Wide-wing Thumbscrew for Firm Fastening: The multitools feature a wide-wing thumbscrew, allowing for secure and firm fastening of the clamp to the fram, ensuring stability during screen printing Positive Locking for Precise Registration: These clamps are designed with positive locking, ensuring perfect registration and alignment of the screen, facilitating accurate and professional silk screen printing results Quick Screen Removal: The loose pin design enables quick and effortless removal of the screen, saving time and effort in the screen printing process Versatile Buttefly Clamps: Ideal for fixing screens during printing, these buttefly clamps are a must-have tool for silk screen printing, providing reliable and efficient support for various printing projects Easy Installation on Any Surfae: With an easy screw-on design, these clamps can be effortlessly mounted on any flat surfae, offering convenience and flexibility for DIY hobbyists and printing professionals alike Specifications:Type: buttefly clampMaterial: metalSurface treatment: plating colorful zincProduct size: as the pictureWeight: 394g Package Included:2 x  Buttefly Hinge Clamp Package List