Designed for comfort, durability and performance, Studio Pro 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 Studio Pro 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.