4 packs of 100 (400) BCW Acid Free 9 ¼” x 12 ⅛” Sheet Music White Backing Boards
BCW Sheet Music Backing Boards are made from 24 point solid bleached sulfate, coated and buffered on one side with 3% calcium carbonate, and are precision cut to size. Use with BCW Sheet Music Bags. Certified Acid Free – Independent Lab Tested.