1/2 0z silicone tube. Better than rubber it will outlast them a hundred times over. Save yourself from having to buy the same soft plastics over and over for ten bucks a pop. 5" length any color. I like chartreuse and white for flaming gorge mackinaw. I only have a half of dozen of these. They are custom made. I poured the lead painted and dressed em. This might be the most expensive jig in the world however it may be the finest jig in the world. Fish would be proud to hit it. Thank you!