Never be caught without a ruler or inching along with your thumb. This leather ruler can be worn looped around your wrist or as a shawl cuff. This listing is for a 14 in (35.5 cm) ruler. The sizing is based on wrapping around your wrist twice and some extra length, please allow an additional 0.5 in (1.25 cm) for the closure. If you are interested in additional sizes, please contact me.