9" x 12"Heavily gummed flap seals securelyTreated with an antimicrobial agent to protect the envelope from growth of bacteria, mold, mildew, fungus and odors100/Box9" x 12"Heavily gummed flap seals securelyTreated with an antimicrobial agent to protect the envelope from growth of bacteria, mold, mildew, fungus and odorsQuality Park 9" x 12" Gummed Catalog Envelopes, 100/Boxhttp://s7d5.scene7.com/is/image/Staples/s0440350_sc7?$std$http://s7d5.scene7.com/is/image/Staples/s0440350_sc7?$thb$http://s7d5.scene7.com/is/image/Staples/s0440350/Quality-Park-9-inch-x-12-inch-Gummed-Catalog-Envelopes-100-Box/product_660652Quality Park 9" x 12" Gummed Catalog Envelopes, 100/Box1.01