"The Mont Bleu company is one of the world's top suppliers of crystal glass nail files. Made in our factory based in Czech Republic, our crystal glass nail files bring affordable luxury of using perfect nail care tool every day, without need to buy another one."
I do however, thoroughly enjoy the mini glass files. I always keep one in my purse, because there's nothing worse than being out and having a nail break.
Foot files are a must have in my life now. They got me through summer and flip flop weather. They leave those problem areas on your feet/toes feeling very smooth.