100 per box 10 mil clear binding report covers with square corners ar unpunched and ready for the user to punch with their own specific punching pattern. Metric size is 216 x 279 milimeters and 250 microns thick. The Oregon Laminations Premium product has a high glossy finish and high quality to meet or exceed all major brands. Beware of sellers piggy-backing on this listing; whereas, Oregon Laminations Premium quality products are only available from Oregon Laminations Company. Not for use with thermal binding systems.