Complete set
I previously wrote a review for the 3.0 and in it I indicated that I would need a full set of gravity hooks to meet my needs. Think of them like screw drivers in a tool box, different sizes for different screws, In my case I’m using them for picking trash up underwater from a canoe. As with the 3.0 the quality is the best and now I have the capability to grab smaller objects that what the 3.0 was designed for. The only change I made to the Dynamic Duo was to add weight to them in the form of washers to give them additional heft as the flow of water sometimes pushes them around. This is in no way a design flaw, it’s just an adaptation unique to the application for which I’m using them for. Thanks.