The Gomexus Titanium Fishing Line Roller D109 is a durable upgrade component designed for Shimano spinning reels in the 1000–4000 size range. Manufactured from titanium for enhanced strength and corrosion resistance, it improves line flow and reduces friction during retrieval. It is compatible with a wide range of Shimano models, including Stella, Stradic (SW/C14+), Sephia (BB/SS/C14+), Twin Power (including XD), Vanquish, BB-X, Biomaster, and Exsence (LB/C14+).