These 11" x 8.5" sheet size products are made with film that is specially formulated to resist the growth and migration of microorganisms such as bacteria, mold and fungi. This material was tested using ASTM G-21 test standard. Choose from plain White Binders and Clear Overlay Binders in 1" round ring capacity, and Classroom Kits with inside pocket and writing pad. All products are made with White Anti-Microbial Film and have Clear Anti-Microbial Film pockets inside. The Clear film on the outside of the Clear Overlay Binders is also Anti-Microbial.