More hygienic and more economical with the Disposable Self-Adhesive Buffer 180 from HN Hit Nails, you can:

Disinfect the core of the file;
Use one self-adhesive file per client;
Use one self-adhesive buffer per client;
Assemble the file in the way you like the most;
Save the environment with less product waste, as you only need to throw away the self-adhesive paper part.

Using the Halfmoon Self-Adhesive File Core, you can assemble your own file as you wish:

100/100
100/150
100/180
150/150
150/180
180/180
File/Buffer
Block/Buffer