Great For Crafting Various sizes and thicknesses 99.9%+ Pure Lead Meet FED Specifications ASTM B749-03 & QQ-L-201f Cold rolled and have ±1/8" width and length tolerances Lead sheet serves many purposes,Some uses are crafting fishing weights, fire arm ammunition, and other artistic creations. There are also other uses for lead sheeting including use as radiation shielding, packing and sealing material, gasketing, ballasts and corrosion resistance lining. Lead sheets are also a great option for building acoustic control systems because they are an extremely effective and efficient barrier when used alone or fastened to the wall. They can also be adhesively bonded to gypsum board or plywood. Acoustical lead sheet has been developed to improve noise reduction in various environments, such as hospitals, schools, office buildings, industrial plants, apartment buildings and other multi-family buildings. It can be used to line tanks and containers to prevent corrosion