John Roberts Beachcaster Bait Stops are a handy little plastic bait stop from a company that is probably better known for its Carp fishing equipment. The main body of the clip will actually slip over the eye of a smaller hook so they can be fitted to the trace at any time. They are fixed by pushing a pin into the main body, working on the same principle as a ledger stop and the body is about 5mm in diameter so they are more than adequate to stop a worm bait from sliding up the trace during the cast. Pack of 6