Quick-drying formula, long-lasting waterproof, smooth strokes. Upgraded super-long-lasting waterproof formula and quick-drying formula, strong resistance to sweat, tears and oil. 0.1mm ultra-fine elastic pen tip, smooth strokes, can draw the ultimate eyeliner from the beginning to the end of the eye in one stroke. Newly added water-locking and moisturizing ingredients, hyaluronic acid, collagen, wild rose fruit extract and Panthenol repair ingredients are added to protect the eye skin.