The picture shows the items – what’s in the box?
There are 10 each of P120, P180, P240, P320 & P400. (The higher the number – the finer the grit).
I had to do a further search, this time on the Axminster web site for the P600 – the one shown in the picture. (Restexpress also sell on Ebay).
The company “Restexpress” do not provide a catalogue either electronic or printed but do operate a mail order service for those without computer access.