RATTLES. Integrated Rattles provide vibrations to get the attention of the fish on structures. HEAD. Powder coated head designed for structure with 60 degree line tie. SKIRT. 50 strand silicone skirts and weed guards are color matched. KEEPER. Proprietary no-slip bait keeper secures trailers of all sizes. SIZE. The Structure jig comes in 4 sizes 3/8 oz, 1/2 oz, 3/4 oz, and 1 oz.