With wonderful, soft and elastic brush for smooth eyeliner drawing. With Multi-Block Fitting Polymer that is good blocking to oil/water for long lasting effect. It is waterproof, sweat-proof, go on for all day long and without smudging. How to use: 1. Natural eye line: draw strongly to the lash line. 2. Distinct eye line: marginally lift up the eyelids, draw along lash line as well as surface at the tail of your eye.