Zig Memory System Writer Chalk Pastel Marker, Carded, White Twin-tipped markers are ideal for pastel chalk effect writing Features 0.5-mm fine nip on one end and a 1.2-mm bullet nib on the other Gives a great chalk effect on dark papers Can also be used for all kinds of card making, lettering and scrapbooking Water-based pigment ink is photo-safe, acid free and lightfast