Can be lettering: Yes
The picture shows the ring width is 8mm
Rings Width:4MM 6MM 8MM 10MM(If you want a width that is not in the options, please contact customer service, we will reply within 12 hours.)
Note: the character of the inside ring is "Tungsten carbide", which is deleted as default. If you stick to have it engraved on "tungsten carbide" inside of ring, please tell me and email to us when you have ordered.