For those that want a light weight cone head, these anodized aluminum cones are the ticket. Drilled to fit our 3/32” hard tubing Each package comes with 10 disks, 3/32” Hard tubing and Junction tubing. A complete one step purchase to get started in tying tube flies. Some tiers will reverse the cone for even more erratic motion. Available in 1/4" OD and 3/8" OD.