What it is: Perfectly Defined Long-Wear Brow Pencil is an automatic brow pencil with a unique slant tip for ultra-precise definition. It offers 16-hour wear that’s sweat- and humidity-resistant and waterproof, and is formulated with a combination of waxes and emollients. It won’t smudge or fade, so brows look fresh and polished. Who it's for: It's for anyone who wants defined, well-groomed brows that last for 16 hours. Why it's different: The slant tip offers the ultimate customized and versatile application. Use the flat edge for a softer look and the pointed tip for a more defined, bold look. Its wax-based formula creates a lasting, waterproof and sweat- and humidity-resistant layer of color, while the attached brush lets you comb brow hairs into place, for a look that’s flawless and natural. It's available in a uniquely wide range of shades so every woman can find the right shade for her skin tone and hair color. How to use: Use the flat side of the pencil to shape the beginning of the brow and the pointed tip to define the edges of the brow. For a bold, super-defined look, use the pointed tip to define the length of the brow. Comb brow hairs into place using the attached brush. Bobbi's tips: The perfect brow will be aligned with the inner corner of the eye. The arch is three-quarters of the way across the brow from there. Lightly stroke the pencil from the inner corner of the brow bone along the entire length to fill it in.