Ecoolbuy 5pcs Nail Art Tips Buffer Buffing Sanding Block Files The four sides of each nail file block are easy to make your nail shining Sanding blocks for filing nail extensions, acrylic nails,false nail tips,natural nails A handy little nail art tool to buff and shape up uneven nail surface before UV gel and acrylic appl Also can be used before applying nail polish or nail treatments. Suitable for professional use or home use