Comic Defense System Magazine Size Comic Book ProBags Polypropylene Bags 8-3/4" x 11" Plus 1 1/2" Flap The perfect and economical way to protect your comics and magazines. 100% virgin material. 2-mil thick Polypropylene. 1-1/2" fold-over flap can be tucked in or taped closed. Sold in packs of 100 and measures 8-3/4" x 11".