This Uni-ball Signo Gel Impact gel ink pen is the elusive opaque gel pens that everyone is talking about! Silky smooth, gel ink that doesn't skip or fade out when it dries - a must-have ink pen for writing on DARK paper, cardstock, photos, over stamped surfaces, etc. Acid-free and writes with a nice even flow on paper and photos. Great for scrapbooking, card making, other paper crafts and especially for adding text to those old black paper photo albums from granny's closet! 1 mm point. Now, in several color choices!