Bryan those are casting lures, usually meant for fishing currents, but work on beaches too. Cast out and let it land, then rip your rod to make it dig. Constant retrieve will cause it to jerk size to side. As with metal lip swimmers etc you want to keep the nose loop loose so use a loop knot or small coast lock or breakaway clip etc. I like Crazy Alberto's clips those are a great design. I don't remember the co name he goes by off the top of my head.