Brighten up your business style. "Colorim. Perky series. personal organizer binder... The material is made of PU fabric with good color,bright color is very eye-catching. The ring diameter is 0.3 inch (8 mm) and is thick enough to be carried around. The internal composition is comparable to a personal organizer, a side pocket, and a card pocket as well as a personal organizer. Refills are also included, so you can use them as a binder notebook from the day you purchased. *Some detail pictures have different colors...