Function: The anchor rings are designed to help raising anchor from the seabed using the buoyancy of a buoy to lift the anchor, and then to retrieve with minimal hard lifting. Material: The rings are made of solid stainless steel, rust and corrosion resistance, sturdy and durable. Wire Dia.: 6mm. Easy to Use: Simple to use, you can use it in many kinds of environments. Application: Perfect for offshore or bay anchoring where anchor chain is used, easily attatchable the buoy to release anchor. Practical Tool: This tool makes anchor retrieving more easier, when fishing in deep water or frequently changing fishing spots. Specification: Material: Stainless Steel Type: Solid Anchor retrieval system Size Chart: Wire Diameter: 6MM/0.24inch Package Includes: 1 Piece Anchor Retriever Ring Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!