Heavy duty Owner hooks Quad ribbed grub keeper Trademark nitro shape Made specifically for Berkley softbaits Higher diameter wire! Forged! Chemically sharpened! and coated in a Super tin finish to resist corrosion! They don’t come any tougher than that! Other design features include; the trademark Nitro shape, that allows a more natural drop, imparts more action on the hop, and resists snagging with its stand up design. Incorporating the Nitro quad ribbed keep for far superior bait keeping abilities. The Nitro Saltwater Pro Jigs are the number one jigs for big strong fish!