Ultra Brow Fine Liner is a waterproof eyebrow pen that creates extremely fine lines that look like natural hairs - for fuller brows and a natural result! The pen contains an ergonomically shaped brush that makes it easy to shape brows and blend out harsh lines. - Waterproof eyebrow pen - Creates extremely fine lines that look like natural hairs - Includes an ergonomic brush that shapes brows and tones out harsh lines Antioxidants Vitamin C and E protect against free radicals and strengthen the eyebrows themselves. 1. twist the pen until the tip of the pencil is visible 2. Make small, light strokes with the pen where you want to fill in your eyebrows. 3. Use the brush to blend out sharp lines and shape your eyebrows.