I have a Gleneagles ball marker but it is the same size as a poker chip
Chris is that the heavy metal ones in black and Gold? they are really nice.
If it is that one I hope you know the centre piece is magnetic and in actual fact is the actual ball marker about the size of a 10p. You can use the big one as well, or anything come to think of it.
Brian Barnes and the can of beer marker anyone?