The Dark Matter Nano Tail Rubbers are specifically designed to work in combination with Dark Matter Nano Tubing. These cones feature a 1.4 mm hole that creates a seamless connection with the thinner nano tubing, helping to prevent tangles during long-range casting. The rubber cones are compatible with all Korda Lead Clips and inline leads, assisting you in building a secure and tangle-free rig. Available in three colors to match the Nano Tubing: grass, gravel, and silt, with ten pieces in each pack. Key features: • Creates a seamless connection to Nano Tubing • Allows lead expulsion • Prevents tangles • Compatible with all Korda lead clips