The latest Yamamoto crawdad bait has huge round craws that act like swimbait tails and actually paddle when you swim the bait. It's also the only craw with a built-in rattle chamber. Big enough to hold a 7mm rattle and dsigned so it won't fall out. The Dad also has extra plastic on it's tail which holds it up on the new style straight shank punch hooks with the barb keeper. No more baits balled up at the hook end! Pair it with a punch weight, a punch skirt and then put it in the nastiest mat you can find and hold on! Great for Carolina rigging or as a jig trailer.