Roboworm Gamakatsu ReBarb Worm HooksRoboworm Gamakatsu ReBarb Hooks are designed specifically for fishing super soft plastic worms. We mold a plastic barb on the shanks of the hook which hold the worm on tight. You use fewer plastic worms and spend more time fishing than fixing! When rigged properly, the plastic Roboworm ReBarb hook is pushed through the worm and then backed up to wedge against the plastic to prevent the worm from sliding down.