This long-wearing eyebrow pencil helps to define and shape the eyebrows, it is an easy to use dual-ended pencil. One end is a soft and precise pencil, the other end is a spiral brush to help blend and groom your brows. This product is dermatologically and ophthalmologically tested.To use: Use the brush end to groom the brows. Then draw tiny criss-cross lines at the start of the brow and use the flat side of the pencil tip to define its shape. Gently brush your brows to blend.