At last, there is an effective tool for assembling spring hinge frames! This easy to use optical tool allows you to extend the spring hinge barrel and grab it gently yet securely. By extending the barrel you can align the temple with the front, and easily insert the hinge screw. With a little practice you can single handedly assemble those frustrating spring hinge frames IN SECONDS! The Western Optical Guild Spring Hinge Plier Kit includes bench mounted fixture for setting up temples for re-attachment.