The 1st picture is an ANCHOR. I use the blue about 95% of the time. The larger one is the one I set into the boat when the wind is higher than 20MPH. I set in the face of the giant yesterday with 3' swells, never moved. Once again light weight in comparison. The 2nd picture does such a bad job at what it does, I do have not used to even anchor a brush pile that i want to stay in one spot.