Omnimed 2-1/2″ antimicrobial binder, top open, holds 450 sheets, mauve the omnimed antimicrobial binder’s combine a silver-base antimicrobial agent with omnimed’s heavy gauge molded tri-polymer binders will bend but not break. Their flexible strength and patented “twin-hinge” ring system give them unparalleled work life durability. The antimicrobial agent is added throughout the polymer and helps fight against mold odors and stains. These 2-1/2″ antimicrobial binders with 3 heavy duty steel rings hold up to 450 pages. Mauve color finish.