Antimicrobial additive prevents the growth of bacterial, mold and fungus. Cover Material: PVC. Color: Black. Ring Type: Round. View Binder: Yes. Sheet Size: Letter. Sheet Capacity: 375. Ring Size: 2". Inside Pockets: 2. Antimicrobial additive prevents the growth of mold, mildew and fungus on the binder surface. Ideal for hospitals, schools and offices. Locking rings hold pages securely. Back-mount rings allow pages to lie flat. 2 clear inside pockets. Overlay material is clear vinyl; binder material is heavy-duty white vinyl