Emulsion pen refills contain a revolutionary combination of oil, water and pigment that delivers the smoothest writing experience ever. An effortless glide ensures a remarkable writing performance with every stroke of the pen. Ink is quick-drying and smear-resistant while maintaining brilliant and bold writing. EQ-Refills are designed for use in Zebra Z-Mulsion and Z-Mulsion EX pens. The 1.0mm point size delivers a bold, streak-free write-out.