Pebco Jet Set Manicure\/Pedicure SetModel PB 0110 Jet Set Manicure\/Pedicure SetThe nail machine for sanding, shaping, and smoothing sculptured nails and natural nails Interchangeable bits (No tools required) Uses 2AA batteries (not included) Instructions:Do not apply heavy pressure. You will get better results when light pressure is used.1. Dark Blue Sanding Stone Tip: Use around cuticle area & for heavy shaping on top and sides of nails2. White Sanding Tip: Use under nail to remove any excess artificial nail product. Also use to shape underside of nail if desired.3. Pink Smoothing Tip: Use to smooth entire nail top surface.Before Use: Dip the stone in water or skin lotion to get it wet. This will make it polish better. When the stone gets dirty, dip in soapsuds and brush up to clean.4. How to Change The Mandril:A. Put the mandril stem into bottom of metal holderB. Then insert the holder\/mandril into the machineC. Do not put the metal holder first into the machinePebco Jet Set Manicure\/Pedicure Set