Simple plastic Fid Use to open lead came channels Opens and closes came, burnishes foil. Forces glaze compound, removes excess compound and lifts came. Burnishing end is turned 90° from pointed end. Designed for comfort, durability and performance, Luminbo high quality glass tools and accessories are an excellent value and will quickly become a favorite for any stained glass project. Double your foiling ease with Luminbo fid pack. Contains 2 specially designed plastic fids destined to become your most indispensable tools. Use the unique rooster-shaped fid to widen lead channels or burnish foil; while the straight line simplicity of the second fid, effectively burnishes foil for a nice smooth surface, essential for even solder lines.