End tab file folders are treated with an antimicrobial agent to guard against the growth of bacteria, odors, algae, mold, fungus and mildew. Ideal where bacteria and mold control is critical. Use fastener folders to subdivide papers inside the folder, or file documents in chronological order. These file folders feature straight-cut tabs for color-code indexing and a fastener for organizing documents inside the folder. The double thick tab puts extra strength where you need it most. Manila folders are scored for 3/4" expansion. Made of 11 point stock.