The bead for exclusive use of rock fish that gently guards the knot of the hook with the built-in rubber pipe. The bump of the knot of the hook bites into the rubber pipe inside the bead and guards the knot. Since the knot does not deform, the knot strength can be maintained. The resin beads have a diamond cut that reflects light diffusely, and the clear and red have a rainbow-colored surface aurora processing that enhances the appeal by emitting light from the inner luminous rubber pipe. On the contrary, if you want to suppress the light, you can use black depending on the situation, and we also have a lineup of convenient mix packs. /Bead diameter approx. 8 mm / inner diameter approx. 3 mm / pipe inner diameter approx. 1 mm.