Thanks for the links again - the stone i have is way smaller than I thought, and is actually only about an inch wide, by maybe 5" long.
Just realised as well though, I do actually have a stone that looks vaguely similar to the one you linked to so I'll find it and see what it is. It's some horribly cheap thing I think - can't even recall where/why I have it!!
Just realised as well though, I do actually have a stone that looks vaguely similar to the one you linked to so I'll find it and see what it is. It's some horribly cheap thing I think - can't even recall where/why I have it!!