K-70 Permanent Ink Marker Free! K-70 in Super Black included with all orders $50+. Now through Monday, September 4th. Super Black alcohol-based ink is permanent and opaque. High quality ink works well on almost everything. A handy marker for a variety of applications. Sam Larson (@samlarson) is an artist based in Salt Lake City. K-70 on paper. Tees + Sweatshirt Sale! Save up to 30% on all Krink apparel, including the classic Logo Tee and Sweatshirt. Limited time only!