Steel Stamps Set, Character Height 3/32 in, Character Type Set Number Set, Characters Included 0 to 8 (With 6 Serving as 9), Duty Heavy, For Maximum Surface Hardness Up to 50 on Rockwell C Scale, For Shank Diameter 5/16 in, Holder Length Not Applicable, Holder Shank Size Not Applicable, Impression Character Style Gothic, Includes (9) 0 to 8 (With 6 Serving as 9), Product Type Hand Stamp Kit, Shank Length 2 1/2 in, Shank Thickness 5/16 in, Shank Width 5/16 in, Stamp Material Steel WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Nickel (Metallic)