Zig Photo Signature Pens are perfect for writing on any photo surfaces. Great for writing on all-occasion photo greeting cards, instant photos, transparencies and more. Perfect for organizing dates, notes and memories. This fine line marker pen can be used on any smooth, non-porous surface as well as most porous surfaces. Photo safe, fade resistant, water resistant, permanent ink, non-toxic and will not smear once ink is dry. .45mm tip Marker Black
