Reversed Letter Set Character Height 5/16 in Character Type Set Letter Set Characters Included A to Z Period (.) Duty Moderate For Maximum Surface Hardness 50 on A Rockwell C Scale For Shank Diameter (27) 5/16 in Holder Length Not Applicable Holder Shank Size Not Applicable Impression Character Style Reversed Includes (27) A to Z Period (.) Letter Casing Uppercase Product Type Hand Stamp Kit Shank Length 3 in Shank Thickness 1/2 in Shank Width 1/2 in Stamp Material Steel