Prep your nails to perfection in four quick steps with this cheerful block! Each numbered side tells you how it should be used, starting with gritty shaping file and ending with a gentle polishing touch. Application : 1. Shape – Use the fine grit to shape and contour. 2. Smooth – Even nails to remove ridges and stains. For Step 1 & 2, work from outside in. 3. Buff – Refine nails till they’re satiny smooth (but don’t over do it!). 4. Polish – Finish by turning up the shine. For Step 3 & 4, work back and forth gently on the nail surface.