In time I realize I needed one like this. So I decided to get one. Bought some materials for doing my nails at home instead of paying in the salon. It's less expense for me. In time I realize I needed one like this. So I decided to get one. When it came to the mail, it doesn't have batteries included. So I need to grab some. It's a double A batteries 2pcs. I finally got to use it this weekend and it works very well. From grinding to polishing. I don't have any problem with it. It's a good purchase.Ended up to be great!Love this, it is great for traveling too bhy the way it is packaged. Comes in a small little pouch to keep everything together. I first thought this would be something cheap ends up being a great product I did my own manicure this time and it looks professional. Five Interchangeable Attachments andamp; HOW TO USE 1. Cone Metal Callus Remover. Files and removes hardened skin and corns around the finger and toe,especially for the callus of hand.2.Cylinder Coarse Polish Head .Polish the edge of nail, shape the nail as you like, you can use along your nail edge. 3.Pink Coarse Disk Head. Polish the corner of nail , smooth the edge. 4. Cylinder smooth Shaper(Larger than the Polish Head).Polish the nail tip,remove the uneven texture. 5.Soft Polishing Felt Cone. Polishes nail to complete the manicure or pedicure .