Nail buffing kit?

Can you extend the life of these nail buffing kits? Mine has three parts, shaped somewhat like large emory boards. One is a fine grade file to clean up ridges, the second one says


';Condition'; on it and the third one is gray and has a sort of rubber surface and it's the actual buffer that makes your nail shiny.


What's the best way to clean them or take care of them so they last a bit longer than one or two uses? Can they be washed in soapy water?Nail buffing kit?
you could probably take a wet towel and wipe them off but i wouldn't suggest putting them under water.

Ltd