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's also effective in deep water. ② Yaen shaft diameter: Φ0.8mm, approximately 20cm from the 1st hook to the 1st eye (assuming a 18cm horse mackerel), approximately 13cm from the 1st eye to the 2nd eye, total length approximately 33cm. ③ Hook size: M to L (Katsuichi, Owner Outbarb, etc.) Number of hooks: 1st hook x 2, 2nd hook x 4 ④ Roller: Φ10mm custom-made (Material: POM) self-lubricating type ⑤ Uses a 3.5g sinker for weight. ⑥ Started selling on Mercari because I want yaen anglers to use it. Has a track record of over 15 years. (Function) ① As the name "yaen" suggests, it's 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-in 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 squid to spring monsters. ④ The balance of the yaen 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 a perfect product or are overly concerned with details. 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