Fishing Type/Fish Species: Squid/Eging Type: Fishing Hook/Hook 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, approximately 20cm from the 1st hook to the 1st eye (assuming a horse mackerel of around 18cm), approximately 13cm from the 1st eye to the 2nd eye, total length approximately 33cm. ③ Hook size is M to L (Katsuichi, Owner Outbarb, etc.) Number of hooks: 1st hook x 2, 2nd hook x 4 ④ Roller: Φ8mm 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 all Yaen anglers to use it. I have over 15 years of experience. (Function) ① As the name "Yaen" suggests, it's a spring-type, so when you set and cast the Yaen, it enters the water without bouncing up, preventing line tangles. ② After 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 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 a perfect product or are overly concerned with details. ④ If the shaft bends when a squid is hooked, please correct it before the next use. Thank you. @Origin Kobo aolijinn