200 BCW Life Magazine Size Poly Bags and Backer Boards 200 Life Magazine Boards & 200 Life Magazine Bags Bags are 2 mil Material Thickness Standard Exterior Dimensions:11 1/8 x 14 1/4 1 1/2 inch flap for closure Crystal clear Boards are Buffered Througout with 3% Calcium Carbonate Exterior Dimensions:10 7/8 X 14 Certified Acid Free