Natural and shiny nails are now effortless with Electronic Nail Care System for WOW toe and fingernails.It comes with three different heads for filing, buffing and polishing.How it worksElectronic Nail Care System comes with an electronic nail file with 3 different heads for filing, buffing and polishing for both toe and fingernails. It works with 1 AA battery For the perfect finish there is the rich cuticle How to use itStep 1: Put the file head on the nail pen, switch it on by choosing your desired speed from 2 speed options and file your nails in your desired shape.Step 2: Put on the buff head to even out imperfections and smooth-en the nail surface. This prepares the nails for step 3.Step 3: Put on the shine head and polish the nail surface in a circular motion. Apply light pressure for best results.