FMATE WORKS Shimano Spinning Reel Compatible with 4000 size and up Drag sound ratchet Aluminum ☆Bearings Washers Screwdriver included☆ Currently out of stock on Amazon Rare item compatible with 4000 size and up ❗️We cannot answer questions about installation❗️ 【As per Amazon's original text】 ↓↓↓↓↓↓↓↓↓ 【Compatible Shimano Models】 22 Stella 4000 - C5000, 18 Stella 4000 - 5000, 23 24 Twin Power 4000, 21 Twin Power XD 4000 - C5000, Vanford 4000, 21 23 Exsence and later 4000 class, 19-23 Vanquish 4000, 20 Twin Power 4000 【Material】 The precision spool rotation provided by the aluminum integrated machine-cut housing, and the concept of supporting the spool with high-precision bearings instead of unstable resin collars, maintains a constant surface pressure on the drag felt, enhancing the stability of the drag operation, and strengthening the drag characteristics. It is possible to linearly minimize the drag output according to the tension. 【Sound Changes】 The drag sound has also been refined, and you will feel that the pitch has been finely tuned to the extent that the drag performance is not impaired, and the movement sound has changed to a metallic and elegant sound. ★Note: This product is an update of the material of the genuine ratchet, but it is not a dedicated part that can convert the drag to a loud sound. If you want to increase the drag sound: Use the included screwdriver to pick up the spring. Bend the spring upwards with pliers, etc. Reset the spring to its original position and confirm that the drag sound has increased.