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 3.9mm Round H Came comes in 1.2 metre lengths and is ideal for those leadlight panels that need finer detail. 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 104