Provide supreme high gloss to natural or acrylic nails! 4 sides with 4 colours, each colour represent one nail care effect of buffer, easy to make your nail shining. For the highest shine: First, rub nails from outside to inside with side 1(Pink side); second, clean up peeled nail fragments with side 2 (Green side); then remove bumps on nails with side 3 (Purple side), and finish with side 4 (White side) Suitable for professional use or home use