The strop is supplied with enough chrome Mastro Livi. This pasta is one that keeps the razor's edge sharp for many months or even years. The side with the dough should not be used all the time but only every 3 or 4 shaves. The side with the pony skin instead be used before and after every shave. I follow the advice, I shave every day for about 1 year and I have not used the stones for my razors.
sorry for my bad English!