Ocean-Angler now carries 2 oz coin disc sinkers! These are also often referred to as disc sinkers, silver dollar sinkers, river sinkers, or coin sinkers. This simple yet effective design allows these weights to hold well in rough river currents due to having a lot of surface area to minimal weight ratio. However because they are smooth and rounded, they dont get stuck so easily. Its a very effective design for their intended purpose. They can also be used in saltwater surf conditions where they are pretty effective there as well!