Letter/number sets and figure sets, sometimes referred to as fonts, are available in sizes ranging from 1/16" to 1" characters*. G-style sets are available up to 2".
A RIBtype Office Kit contains everything you need to get started using RIBtype to make your own message stamps: a Letter/number set, a low profile stamp mount to hold the type, a black stamp pad for marking on paper, and tweezers to help position small characters.