This transparent heat-shrink tube can be used to finish rigs and increase their hooking potential by bending the terminal inward, helping the hook to turn once inside the fish's mouth. Several rigs benefit from the heat-shrink tube, including the line aligner. The tube is rigid enough to maintain its shape but, unlike a bent hook, it straightens once the carp has taken the bait, preventing damage. The tube shrinks to about one third of its original diameter and is available in different sizes: XS (1 mm), S (1.2 mm), and M (1.6 mm). Each pack contains 8 pieces of 55 mm tube.