Trust me -#6 Virginia style. I usually buy 300 or 400 at a time from mail order catalog. Tie on 6" to 8" 40lb leader. Tie loop at end of line for sinker. Up about 3" tie a loop for the hook. Any kind of crab is good. About the size of a silver dollar is great. Cut crab in half, cut off claw, remove the shell. Put the hook in crab between 2 rear legs and bring it forward. Let it come out of crab either between legs or out a leg socket. Leave the hook fully exposed. Drop it down and keep it still. In the spring clam will catch as many as crabs. There's nothing like a 5 lb or better tog on the end of your line. Good luck.