This is a modified version of the traditional swing-type Yaen (squid jig) with a structure that allows for the attachment of items like Miraito (glow sticks). Since the balance is affected if nothing is attached, please use inexpensive Umihotaru (sea fireflies) or similar when fishing during the day, considering the possibility of loss (we will include the tube that fits 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 (we can exchange it for an expert shape if we have it in stock, but please understand if it's out of stock). This Yaen may fail if used with conventional methods. 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 Made of super-hard 1.2mm stainless steel For horse mackerel around 15cm (Features of the Fluorine Roller Swing Yaen) ① Even if you can't see the Yaen reaching the squid, it will immediately flip up upon arrival. The advantage is that it increases the probability of hooking the squid before it escapes, even before the horse mackerel's head is removed, making it easier for beginners to fish (provided the squid is in a vertical embrace). Upon reaching the squid, the structure leaves the 2nd and 3rd support points on the line, and only the main body of the 1st support point flips up like a swing (jumps forward). Unlike conventional flipping, there is no loss in 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 unease, and its speed is good even without an angle, making it suitable for long-distance hooking. ③ The hooks are self-made from super-hard stainless steel, considering a wide and sharp hooking range. No barbs (the 3rd hook has commercially available barbs). ④ When attaching lights to the Yaen, it can be tight, so first put the tube on the Yaen rod, then wet the Miraito, etc., and push it in (the tighter it is, the less likely it is to come off). ⑤ Even without a Yaen stopper, the Yaen will instantly pierce the hook tip into the body of the squid upon arrival, so there is no need to set the hook, and you can still catch squid. (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.