Shimano Stradic FM 4000

The reputation for dependability and versatility prevails in the all-new Stradic FM, the newest addition to Shimano's CoreSolid lineup of spinning reels. Showcasing reel technologies passed down from Shimano's flagship spinning reels, the redesigned Stradic FM adds InfinityXross technology for unequaled gear durability and synergy by extending the gear tooth horizontally to distribute load across the gear tooth more evenly. This parlays Shimano's legacy of cold-forged HAGANE gearing for added strength with the refinement of MicroModule II for the ultimate reeling experience. The addition of InfinityDrive delivers light rotation and increased cranking power under load, while the new Duracross Drag system provides the smooth performance of felt with up to 10 times the durability. Shimano's X-Protect water-repellent coating and specially designed, water-channeling labyrinth construction ensure a lifetime of dependable performance by stopping water penetration in key areas without adding a heavy rotational feel. The new Anti-Twist Fin — an elastic polymer on the underside of the roller — enhances line management for anglers fishing monofilament or fluorocarbon line. The all-new Stadic FM — the most complete Stradic in a long lineage of performance.

These were new in 2023 

https://fish.shimano.com/en-US/product/reels/spinning/frontdrag/a075f00003slvodqas.html