Finally a waterproof liquid liner that glides on with ease, won't smudge or run, and stays in place until you say when! The thin marker-like tip is easy to use even for the least experienced, and delivers a defined thin line or a dramatic bold line with precision. Goes on smoothly without skipping, smudging, or pulling, and lasts all day! How to use: Shake well before use. Sweep pen along lash line. Use Micro Tip to fill in between lashes for natural definition and the appearance of a fuller lash line. Store horizontally for best performance. Stila Women's Stay All Day Dual-Ended Waterproof Liquid Eye Liner in Intense Black