Bubble Rig with Clarkspoon Rigged with a size 00 Clarkspoon and 2.5" bubble float, the Bubble Buster Mackerel Rig is designed to facilitate long-distance casting to capture schooling fish. This rig is equipped with a 40lb. monofilament leader and two #7 stainless steel swivels. Perfect for fishing from a boat, pier, or beach! Fill the float with water to achieve desired weight for additional casting distance! Quickly retrieve the rig for an irresistible fleeing bait-fish action.