This set comes with upper and lower case letters in 3 sizes:
1/2" - 3/4" - 1"
Numbers 0-9 are also included.
The following formats are included in the download: PES, DST, EXP, HUS, JEF, VP3, VIP, and XXX.
Also includes .BX format that works with Embrilliance Essentials, AlphaTricks, and Designers Gallery EmbroideryWorks that will allow you to use the letters as a keyboard font.