Brand new.  100 Bags + 100 Boards, a complete set to store your books the in best way.

The BCW Magazine Backer 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 this item along with Magazine Bags (INCLUDED!!) to protect and store your collectible magazines.

• Certified Acid Free - Independent Lab Tested
• Use With BCW Magazine Poly Bags Or BCW Magazine Mylar Bags
• Bags Are Also Perfect For The Large Size DC Black Label Comics.
• The BCW Magazine Bags Are An Acid Free, Archival Quality Product Made Of Crystal Clear Polypropylene.

Exterior Dimensions: 8 1/2 x 11
BCW Model: 1-BBMAG + 1-MAG