This is a modified version of the traditional swing-type Yaen (squid jig) with the structure improved to allow for the attachment of items like light sticks. Since the balance is disrupted if nothing is attached, please use inexpensive items like sea fireflies when fishing during the day, considering the possibility of loss (we will include the appropriate tube for both). The hook shape of this product is standard, but if you want to exchange it for an expert shape, please request it immediately via message at the time of purchase (if in stock, 1-2 can be exchanged for expert shape, but please understand if they are out of stock). This Yaen may fail if deployed with conventional wisdom. We will send handling instructions via message to those who purchase it, so please be sure to read them. Weight: Approximately 13g, Total Length: 36cm Super-hard stainless steel 1.2mm For horse mackerel around 15cm (Features of the Fluorine Roller Swing Yaen) ① Even if you don't know when the Yaen has reached the squid, it will flip up immediately upon arrival. The advantage is that the probability of hooking the squid before it escapes is high, even with squid that haven't had their heads removed, making it easier for beginners to fish (provided the squid is in a vertical embrace). When it reaches the squid, the second and third support points remain on the line, and only the main body of the first support point flips up like a swing (jumps forward). Unlike conventional flipping, there is no loss of lifting the hook, and the forward speed, the weight of the Yaen, and the water pressure when reeling in all contribute to the flipping force. (Once it reaches the squid, you will reel it in while maintaining the flipped-up state by loosening the line with a three-point Yaen using a Yaen stopper.) ② The large fluorine resin roller provides good smoothness and quietness in the water, eliminating the need to loosen the line to send in the Yaen, making it less likely to give the squid a sense of discomfort, and its speed even without an angle makes it good for offshore hooking. ③ The hooks are self-made from super-hard stainless steel, considering a wide and sharp range of capture. No barbs (the third-stage hook has commercially available barbs). ④ When attaching lights to the Yaen, it's tight, so first put the tube on the Yaen rod, then wet the light stick and push it in (the tighter it is, the less likely it is to come off). ⑤ Even without a Yaen stopper, the hook tip will instantly pierce the body of the squid when the Yaen reaches it, so there's no need to set the hook, and you'll still catch them. (Caution) ① There is a possibility of distortion in the hooks, so please correct them yourself. ② Sorry, but no price reductions or bulk sales.