This listing is: You will receive both the uppercase and lowercase. The 3mm (ave.) Uppercase Fornax Set which contains letters A-Z. Our Sharper Lines and high rockwell hardness rating make it good for use on stainless steel blanks. 2.75mm Lowercase Fornax Font Alphabet Letter Set consisting of Lowercase letters A-Z. This measurement is based on the average size of all letters. Every letter is not 2.75mm but the AVERAGE.