The Valcambi 70- 1 gram silver bars have a round shape and are composed of 0.999 fine silver, with each bar containing 1 gram of precious metal content. The bars are produced by the Valcambi mint and may exhibit some light toning, as indicated in the listing. These bars are a popular choice for bullion collectors and investors due to their small size and high purity, making them a convenient and valuable addition to any precious metals portfolio.