Speedball Water-Soluble Block Printing Ink Set &ndash; 4 Bold Colors With Satiny Finish - 1.25 FL OZ Tubes INDUSTRY LEADING PRINTING INK  These block printing inks receive rave reviews from artists and students for good reason. Included are black, red, blue and yellow inks that are all ground and milled to the perfect consistency CREATE GORGEOUS PRINTS  The water-soluble printmaking ink is ideal for block and relief printing. Use this premium ink on linoleum, wood, Speedy-Cut Easy, Speedy-Cut, Speedy-Carve and Polyprint INK HAS EXCELLENT TACK  This printing inks in this set all have nice tack which ensures even coverage and allows you to produce consistent, spectacular results every time QUICK, EASY CLEAN UP  There is no messy clean up when using this block printing ink. When you are done with your project the ink will come right off you using soap and water AP CERTIFIED  The Speedball Block Printing Ink Set is safe for adults and children to use. It is ACMI AP Certified and conforms to ASTM D-4236