The tin layer on tinned wire protects the copper core from oxidising and accepts solder with minimal cleaning. Silver coloured and will accept patina. Use as reinforcement in suncatchers, to make jump rings and for applying quick and easy decoration to your soldering. Sold in 120ml spools. 16 gauge wire is thin enough to be used as decorative elements but strong enough to use as structural support. 16 ga measures 0.1cm diameter. 120ml spool. First project below from "Pretty Little Things" book #6713. Second project shown created by artist Lynette Wrigley. From "Stained Glass 20 Great Weekend Projects" book #5947.