50/box Letter size 9 x 11-1/2 hot 10 mil laminating pouches with a clear glossy finish and standard 1/8" radius rounded corners. LAM-IT-ALL brand item number LIALR10 with special quantity price break for buying multiple boxes. 10 mils (metric 250 microns) thick on each flap adds a total of 20 mils to your paper sheet. 9 x 11.5 (metric 229mm x 292mm) laminator supplies for paper lamination and protection. This laminate provides excellent support for sheets prior to 3-hole punching to insert into binders.