Fishing Line Winder with Suction Cup: There is a vacuum suction cup at the bottom of the winder, which can be adsorbed on any smooth surface, especially on glass materials with water. Capable of withstanding the pressure of the wire pull, keeping the winder stationary for efficient winding, Adjustable Winding Fishing Reel: The spring-loaded spool holder can maintain a fully adjustable clamping force, control the tightness of the spool and fit different spool sizes by adjusting the distance between the set screws, effectively holding your wire wheel. Lightweight and Durable Material: The fishing line winder is made of high-quality corrosion-resistant aluminum alloy shaft for extra durability, 120g, easy to carry. It is recommended that the fishing line spool hole diameter is less than 2.5 cm/0.98 inches. (Note: Fishing line is not included) Easy to Install Fishing Line: The reel can be disassembled at any time for removal and installation, and it makes it easier to put the line on the fishing reel. This way you can take it anywhere, whether you're on a kayak, boat, etc., and tighten the fishing line yourself. (Note: Fishing reel and fishing line are not included in the package!) Great for Fishermen/Fishing Enthusiasts: The Fishing Line Winder is a must-have for everyone involved in fishing, it's a super smart tool for rewinding your fishing reels to keep your hooks from getting tangled, tangled, loose, and more. A time-saving tool for the fisherman's home, boat, truck or basically anywhere.