Having been looking at buying a set of filters for a while. Yes I know the old adage you get what you pay for but as a trial I didn't think the ones I got for 25 quid from Amazon were bad. The only problem I have found is that the supplied holder is a little flimsy and the filters are not labelled to what they are. This one did look like a polarising filter not sure.
Looks ok to me P, I have only one filter and its a Polarising filter from John Lewis and I have used it once to take a shot of a trout in the River Derwent, Bakewell, and it did the trick.