This Microscale HO Scale Alphabet and Number Decal Set includes complete character sets (letters and numbers) in a font used by railroads and other industries for rolling stock, locomotive and vehicle lettering, as well as for signs and billboards. Each alphabet set includes an assortment of characters in various sizes. Printed on thin clear waterslide decal film with an adhesive that's activated when you apply water. Check out the line of Microscale HO, N and O Scale Alphabet and Number decals.