These smooth square modern stainless steel cufflinks are engravable with up to 3 letters per cufflink. They are approximately half an inch to 3/4" in size. Each cufflink can be engraved with your choice of single letter, monogram of up to 3 letters. Enter letters in the order you want them to appear. Example: Kevin Frank Peterson = KPF with the last name initial in the center. The Roman Monogram font is shown below. If you want a single letter that is an option. If you have special instructions please include them in Step 3 of checkout in the comments box.