5 Zig Photo Signature markers-red blue green magenta and black. They are perfect for writing on any photo surface. Great for writing on all-occasion photo greeting cards instant photos transparencies and more. Perfect for organizing dates notes and memories. These fine-line marker pens can be used on any smooth non-porous surface as well as most porous surfaces. Photo safe fade resistant dries quickly will not smear once dry and water resistant. Ink is permanent.