The Ocean Hunter 5 Barb Cluster Head is designed to penetrate through the fish and give a better hold when fighting. It is made with a strong stainless steel which keeps the barbs straight and sharp. Being able to replace the cluster heads is a huge plus as sometimes we miss the fish and hit a rock, not the best thing to do but it does happen and trying to hit a fish with a bent head is not easy. Simply screw it off, pop another new one on and off you go. Grab a couple as you never know when you will need a spare.