Quality Raw Material: The nickel sheets(SSPN-0029) here are Ni200 standard, it’s purity is 99.6% or higher. Pure nickel is ferromagnetic, can be attracted by a magnet.,Length x Width x Thickness: 6 x 1 x 0.04″, Length Tolerance: +/- 0.02″, Width Tolerance: +/- 0.02″.