You can try to catch crab by launching your crab pot and nothing in it. You can also try to look pretty in hopes they might notice, but chances are, No Bait means No Catch. This bait cage keeps bait secure in larger crab traps.For Crab Traps Opening: 6" x 4"It features a heavy-duty rubber band door closure and tough vinyl- coated steel wire construction for longer life. Large enough to accept all commonly used baits