The ink is photo safe, acid-free, lightfast, waterproof, fade-proof, non-bleeding, odorless, and smear-proof (once dry).
Each pen also includes pure pigment ink that stands the test of time, so your precious memories can be preserved for future generations to enjoy. Memory System Double Sided Calligraphy Marker steel gray.From creating journals and designing borders to creative lettering and doodling, markers are an integral part of the art of scrapbooking.Each pen possesses two tips: one broad 5 mm tip to title your pages and make simple checkerboard boarders, and one narrow 2 mm tip for delicate lettering and scrollwork.