The IsaDora Precision Brow Pen Waterproof is a super slim retractable brow pen for precise and controlled brow filling. Key Benefits: - Long lasting waterproof colours that won\'t fade or transfer. - Ideal for slim eyebrows, to fill in between sparse brow hairs, or spot filling of over-tweezed areas. - Retractable pen - no sharpener needed. - Fine hair-like strokes which mimics natural hair. - Long lasting, waterproof colors that won\'t fade or transfer. - Matt effect.