With a lifespan of only one year, bigfin reef squid has a remarkable body growth. The main food that supports their growth is "fish," the flashes and reflections emitted by their scales and body surface are important signals for the bigfin reef squid to know their presence. The "strobe fin" located on the back of the squid jig generates a strong "rolling action" by receiving water resistance during the action. This rolling action creates a powerful flashing effect (reflected light) from the sides of the squid jig's body, which strongly appeals to the eyesight of the squid. It's possible to efficiently target active bigfin reef squid.
*Japan Design Rights No. 1731861

With a lifespan of only one year, the bigfin reef squid has a remarkable body growth. When a bigfin reef squid sees the squid jigs, the enormous amount of seawater in front of its eyes acts as a filter, and its visibility is thought to depend on the color of the seawater, or tide color. Nowadays, "U.V.ray reflection" squid jigs are indispensable for prime time and daytime eging. "Neon Bright" has dramatically improved its reflection efficiency and offers a lineup of reflection colors (reflection wavelengths) that correspond to the three primary colors of light. Clear and blue water color in midsummer and winter, muddy and green water color in spring and autumn, red sky influenced water color in the morning and evening, etc.... By matching the reflection color to the water color, the reflection appeals to the bigfin reef squid efficiently and improves the ability to respond to different situations when eging.

Attached "HYDRO FIN" at the rear of the jig for improved stability when sinking. "HYDRO FIN" acts like a ship's rudder. Low activity squid dislike the EGI that has an unstable sink. Under bad conditions such as strong wind and high waves, squid jigs sink unstably. EGI-OH K with "HYDRO FIN" specialize in a having a stable sink in any condition.

The YAMASHITA "SEARCH" squid jigs feature a number of unique features but what sets this jig apart is the 600Hz rattle inside the body. YAMASHITA have discovered after much research with a leading Japanese University that squid can pick up sounds between 400Hz and 1,500Hz with 600Hz being the optimum level for squid to be most interested. "EGI-OH LIVE SEARCH", "EGI-OH TR SEARCH", "eginno PYONPYON SEARCH", and "eginno MOGUMOGU SEARCH" are equipped with the best rattle sound for attracting squid. It is very appealing to high activity squid. Made with ball bearing material to produce the best audible sound. From other point of view, the rattle sound imitates the "Bite sound" made by squids. Finally YAMASHITA decided to use Steel ball bearings for the "SEARCH" jigs. It is easy to understand the different sounds different materials make with this test. YAMASHITA chose the best rattle ball and plastic material after much testing. Steel balls and bone color plastic proved to be the best combination for creating the most attractive sound for squid.

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*We have tried various combinations of metal balls and plastic materials.

For many years squid anglers all over the world have used jigs equipped with glow material. Now, research shows the best wavelength of visible light for squid is 490nm. This is a tuned glow of 490nm which YAMASHITA discovered with the research from a leading Japanese university is the best glow color for the squids eyes to detect.
"Glow of 490nm wavelength is most perceivable for squid."