Gen3 Marine Stainless Steel Folding Box Anchor The frustration of anchoring will be a thing of the past with Gen3 Marines new Box Anchors. These non-polished stainless steel folding anchors come in three convenient sizes and are effective when used with boats up to 40. Easy to Use This folding box anchors unique design allows for greater control of the anchor placement and allows it to be set on the bottom no matter what the marine conditions. Just cut the boat engine, throw the anchor overboard