Ceramic Top Guide (Choose any 2 from 5mm inner ring diameter / 11 pipe inner diameter sizes) Stock Status (MM): (1.6/1.7/1.8/2.0/2.1/2.2/2.4/2.5/2.6/2.7/2.8/3.0/3.2/3.5/3.8) This is a guide for fishing rods that uses a high-quality ceramic ring. It achieves smooth line passage and excellent wear resistance, and is compatible with both PE and nylon lines. Features: Ring Inner Diameter: 5mm Supports various lines, enabling smooth casting and retrieving. Ring Material: Ceramic Resistant to heat and prevents scratches caused by friction with the line. Achieves smooth line sliding. Pipe Inner Diameter: 1.7mm - 3.5mm (11 sizes available) A wide range of sizes to choose from to match your rod. Can be used for thinner rods to slightly thicker types. Choose any 2 You can freely select any 2 sizes you like for repair, custom rod building, or according to your intended use. An ideal item for repairs and custom rod building. A part you'll want to keep as a spare.