Our design resemble scissors. The main part of it is made out of two wooden rectangles. We screwed them together to make them be able to rotate. The handle is made out of metal bars. We used pieces of hot glue on the grabber so it would easier to pick the blocks up. A strength that we have is that you can use one hand to pull the blocks up like a tong. One limitation that our build has is that it cannot go very deep underwater. Secondly, it is small so it cannot pick up bigger objects. If we had more time we would make our build bigger so we could pick up different objects.