This product not only prevents the terminal tackle from tangling around the line and thus creating knots, but also prevents contact between the carp and the rod during the fight. This is therefore a vital aspect of rig safety that must not be ignored. These plastic tubes, available in four different colors, have a matte camouflage coating that prevents the carp from noticing them once submerged in water. Easy to thread. Available in clay, algae, gravel, or silt colors in 2-meter packs.