The rebar "anchors" are often used in rocky or reef areas by fishing boats. They are pretty much sacrificial. I would not trust my boat on one overhight--and just where do you stow that?
I had heard that Bruce was no longer making small anchors-I found this on the internet "NOTE: Bruce anchors have been unavailable in the United States since late 2004. Bruce has been producing most of their anchors in a foundry in Brazil for the last several years. This relationship was terminated in 2004 when Bruce had plans to move the production to another foundry. There have been numerous complications with this plan and the situation still remains unresolved today. "
I had heard that Bruce was no longer making small anchors-I found this on the internet "NOTE: Bruce anchors have been unavailable in the United States since late 2004. Bruce has been producing most of their anchors in a foundry in Brazil for the last several years. This relationship was terminated in 2004 when Bruce had plans to move the production to another foundry. There have been numerous complications with this plan and the situation still remains unresolved today. "