The 1 oz Silver Building Block Bars - 12-Piece Starter Pack is a collection of silver bars produced by the Monarch Precious Metals mint. Each bar is composed of 0.999 fine silver and contains 1 oz of precious metal content. These bars are in a bar shape, making them ideal for building or stacking purposes. Produced in the United States by a private mint, this starter pack offers a convenient way to invest in silver bullion. Each bar is uncirculated and uncertified, providing a simple and secure way to add silver to your portfolio.