100-9 5/8 x 6 5/8 x 1 1/4 White Multi Depth Bookfold Mailer Book Bookfolds$$Office

32 ECT Corrugated Pads Perforated for easy folding Holds 1 - 4 Books, Albums or other items Adjusts to close at 1/2" or 1" Manufactured from heavy-duty 200#/ECT-32-B flute corrugated