The design concepts of “Cutting Delta” point originate from military triangular sword, we designed the sides of hook point to “equivalent triangle”,in addition to a good penetration performance,there is another feature:when piercing,the mouth opened towards the direction of the three angles.After precise calculation,the extent of mouth opened is proportional to the angle of triangular pyramid,it not only can help air enter into the mouth smoothly but also increase the piercing speed of hook point. This is why army sword were designed to triangular point. Through using tests, even if the fish did not bite lure, the fish will be extremely stuck by sharp hook point in the body, it does not give the fish any chance of escape.
