The Kodia 548 (SS 304) Cubicle Door Lock is a bathroom indicator bolt for toilet and bathroom cubicle doors. It comes as two round rosettes in a brushed steel finish. The outer rosette has a slotted coin turn beside a green indicator window, which shows whether the cubicle is free or in use. The inner rosette carries a long, rounded thumb-turn lever for locking the door from inside the cubicle.