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 corrugatedYou may also like 32 ft Pipe Insulation Foam Tape, 32 ft Foil Electric Pipe Hose Wrap, 6ft Heating Cable Automatic Electric Heat Kit Built in Thermostat for Outdoor Winter Hot Cold Water Pipe$$Tools & Hardware Other.