With its bright colours and a nice glossy finish, Crystal collection refreshes your desk, both at school or in the office. These Exacompta Crystal PP Ring Binders are flexible PP transparent. 0.5mm thickness. With 4 O-Rings 15mm and 20mm spine this binder has a capacity of 140 sheets. Ideal for school, office and home. Exterior size 320x250mm for A4.