HIGHLY recommend this one:
http://www.peticure-grooming.com/Pet...p_0-28362.html

NOT this one:
http://www.pedipaws.com/instructions.html

Please, please, please notice the difference between the spelling of the two devices.

I purchased the PETICURE grooming aide and both of my cats allow me to file their nails without running away or hiding. My male cat (younger) allowed me to use it from day one. My OLDER (11 yr old cat) was a little slower to warm up to it -- BUT both cats are fine with it now.

The model I purchased is NOT battery operated. I didn't want to worry about replacing batteries, draining out while trying to use -- so I opted for the professional model with the AC cord and boy am I ever so glad I did.

Notice the price difference -- the professional one is $60; the other one is less than $20!

I much prefer to file the cats claws and so do they.