New Zer.0 files cuts product like butter.
5 layered Japanese files are what every technician needs in salon work. 
Besides 3 layered ones, this amazing file is made with the best Japanese paper and technology.  
Firm but yet flexible and, of course, durable. 
150/180 grits are perfect for shaping the product and what is most important: safe for natural nails . 
Try it, you will absolutely love it .