RYUGI TC Keeper worm keeper used by heat shrinking the hook.When heat is applied, the main body shrinks and at the same time, the inner adhesive melts and is firmly fixed to the hook.The tube tip is bifurcated, and the worm fixing force is strong.The other side is a loose taper cut, making it difficult to tear the worm when setting it. Can also be used as a trailer keeper for jig heads, rubber jigs, and spinner baits.