Global Lead produces the best line of came lengths manufactured expressly for the stained glass industry. Packaged to arrive long, straight and ready to stretch this 5.2mm Round H Came comes in 1.2 metre lengths and great for cabinet leadlight panels. Lead came is an alloy whose major ingredient is virtually 100% pure lead with small trace amounts of tin, antimony, and copper that gives it high strength. It also minimizes oxidation, making it easier to solder. Completely safe just remember to wash hands after handling. Approx lenghts per 15kg box 61