Zig Memory System Writer Twin Tip Marker Pen 804 Plum Mist Tips: 0.5mm and 1.2mm Water-based pigment; photo-safe; acid-free; archival quality; lightfast; waterproof; non-bleeding; Xylene free and odourless Part of the ZIG Memory System - the premier line of markers designed specifically for scrapbooking and precious paper crafting which has been continually named the best markers in the memory craft community.