Features: - Nail buffer can be used to file nails, remove ridges, smooth nails, shine nails. - Nail Buffer Block 4 way is made with high quality sponge and durable sand paper materials, soft and gentle buffer block for natural nails. - No sanding dropping, with advanced technique of coating, the sand on the surface will not drop during use. - Washable,the nail buffers is made of premium materials which can be washed under running water. How To Use Nail Buffer Block Application: Combination with 4-ways in one nail buffer block, perfect for daily nail art care. 1. Use the black side to file nail edge 2. Use the yellow side to remove nail ridges 3. Use the pink side to smooth nail surface 4. Use the green side to shine nails, and make your nails shiny top-coat-like effect Product Name:4-Ways Nail Buffer Block Weight: 5g/pcs 28g/pack Size: 9x3.5x2.7cm/pcs 3.54x1.38x1.06inch/pcs Package Included: 5pcs/pack