1. Innovative Spool Design – Our fishing line spooler features a unique spool design and is compatible with fishing rods with diameters of 2.0/1.35/1.0/0.7. The versatility of this product makes it an ideal tool for all your fishing adventures. 2. Compact and Lightweight – This fishing line winder is pocketsized and lightweight, ensuring easy mobility and effortless storage and transport. Whether you're fishing nearby or traveling to distant locations, this tool meets all your needs. 3. Reliable Spool Holder – Equipped with a builtin spring, this integrated reel spool holder effortlessly secures the spool while winding line onto your reels. The sturdy construction of the spool holder ensures performance, reel after reel. 4. Adjustable and Extendable Screw – This fishing tool comes with an adjustable screw that can be extended up to 68 mm, accommodating 500yard fishing lines. This functionality provides you with more options and flexibility when spooling your line.