SGravityy (surf, gravity) curly tail worm. Unlike conventional worms, the ring-shaped surface increases the contact area with water, and the surface tension is increased to give water entanglement and buoyancy, suppress fall speed, and generate waves firmly during swimming. Designed to appeal to the target. The curly tail attached to the tail part firmly grasps the flow of water and shakes the tail and flutters, fascinating the target with a natural swim of weak waves. A guide fall is provided in the center of the body, and it is designed so that anyone can easily install it without the worm keeper coming out of the head shifting. Not only flat fish but also rock fish can be widely supported.