Fishing Type/Fish Species: Squid/Eging Type: Fishing Hooks/Hooks Thank you for viewing. ① The primary design concept is a light overall weight (around 7g). Effective in shallow areas, seaweed beds, and areas with submerged rocks. Of course, it works in deeper waters as well. ② Yaen shaft diameter: Φ0.8mm, from the 1st hook to the 1st eye is approximately 20cm (assuming a 18cm horse mackerel), from the 1st eye to the 2nd eye is approximately 13cm, total length is approximately 33cm. ③ Hook size is M to L (Katsuichi, Owner Outbarb, etc.) Number of hooks: 1st hook x 4, 2nd hook x 4 ④ Roller: Φ10mm custom-made (Material: POM) Self-lubricating type ⑤ Uses a 3.5g sinker for weight. ⑥ I have started selling on Mercari because I want Yaen anglers to use it. I have over 15 years of experience. (Function) ① As the name "Yaen" suggests, it is spring-loaded, so it enters the water without bouncing when the Yaen is set and cast, preventing line tangles. ② When the Yaen reaches the squid and the reeling action begins, the tail of the horse mackerel hits the lifting eye (1st eye), naturally causing it to flip up, and the hook catches the squid. (See Figure 5) ③ Used from autumn juvenile squid to spring monsters. ④ The Yaen's balance is maintained by the roller section, providing excellent smoothness. (Notes) ① Due to being handmade, there may be variations in dimensions and weight. ② My Yaen does not use a Yaen stopper. ③ Please refrain from purchasing if you are looking for perfect products or are overly concerned with detail. ④ Bending of the shaft may occur when a squid is hooked, so please correct it before the next use. Thank you. @Origin Kobo aolijinn