The Prince August Standard Metal 3 Bars 375g from the casting materials range provides a high quality white metal. Standard metal, the cheapest model metal, is a tin/lead alloy but uses antimony as a flow improver. 65% Lead/2% Antimony/33% Tin. This pack contains 3 125g bars for a total of 375g Manufacturer: Prince August Model: PA2058 Standard Metal 3 Bars 375g