Alphabetic file is treated to resist the growth of bacteria, mold and mildew that can cause stains, odors and product deterioration. Great for medical and dental clinics, schools, offices and daycare centers. 7/8" expansion per pocket. Full-height colored gusset with clear poly tape reinforcement at top. Archival quality. Expandable File Folder Type: Antimicrobial; Size: Letter; Width: 12 in; Height: 10 in.