This bar is made of 24k (999) yellow gold. this 2 gm gold bar comes with bis hallmark.bis hallmark is not a separate certificate, it is an inscription made on the product.the product is 2 cm in length and 1.4 cm in width.closure type is exactly what is shown in the picture.the product will be an excellent pick for you. this is stylish, trendy and classy. it is safely packaged for your convenience, protecting it from damages.