The Roboworm Rebarb Hook was designed specifically for fishing any super-soft plastic worms. The barb, which is plastic, is molded to the shank and serves to hold the worm on the hook tightly and straightly. The worm is prevented from creeping down on the hook when you drag it over or through brush and rocks. One nice feature of these specially designed hooks is that it reduces your rigging time and actually reduces the usage of worms when they are rigged correctly on the hood. 6 Per Pack