Pas de soucis

This is exactly what it looks like, a stone with two halves. The only instructions are three drawings on the box giving the vaguest of idea's on how to use it. I assumed on first opening the two halves were rough and fine but the little drawings show only one side being used. Another one of the little drawings shows an oil can so I dug out some light oil and applied a few drops.I tried it using a wood chisel and after some trial and error I did get my chisel sharp so its good enough. I had intended to try it with some knives but the little knife sharpener I had, the type that looks like crossed fingers, gave a good enough result without the hassle so I'll stick with that.So, does what it says and sharpens things but the instructions are rubbish.