In time I realize I needed one like this. So I decided to get oneBought 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 professionalFive Interchangeable Attachments andamp; HOW TO USE1. Cone Metal Callus Remover X 1Files and removes hardened skin and corns around the finger and toe,especially for the callus of hand.2.Cylinder Coarse Polish Head X 1Polish the edge of nail, shape the nail as you like, you can use along your nail edge.3.Pink Coarse Disk Head X 1Polish the corner of nail , smooth the edge4. Cylinder smooth Shaper X 1 (Larger than the Polish Head)Polish the nail tip,remove the uneven texture.5.Soft Polishing Felt Cone X 1Polishes nail to complete the manicure or pedicure Any questions, feel free to contact us...