1. Material: Made of marine grade stainless , anti‑wear and anti‑rust, suitable for harsh marine environment. 2. Function: Makes retrieving the anchor much more easier‑especially when fishing in deep water or frequently changing fishing spots. 3. Application: Perfect for offshore or bay anchoring where anchor chain is used. Easily attatchable buoy to release anchor. 4. Welded Rings: This ring has two loops welded closed on the top, so there be no concern about rings bending open. 5. Dimensions: Diameter 5‑3/8inch (137mm), thickness: 5/16inch (8mm), the distance of outer weld small ring 24mm/0.95inch (recommend to use 4inch snap that is not included). Item Type: Anchor Retrieval Ring Color: Silver Material: Stainless Steel Package Contents: 1 x Anchor Retrieval Ring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.