These spoons are 18/0 stainless steel. That means it is composed of 18% chromium and 0% nickel. Nickel is added to stainless steel for corrosion resistance and durability. 18/10 is better than 18/8 stainless steel, and 18/8 is better than 18/0.There are spots of black metallic residue all over the spoons. I don't want whatever this stuff is in my food. There are also cracks around the rim of one of the spoons.I'm disappointed with these measuring spoons and will probably discard them.