The No Roll Sinker is designed for use in heavy current environments where an egg or bank sinker may tend to roll along the bottom. The No Roll Sinker has a flattened profile that lies completely flat along the bottom and avoids the resistance of moving water against the sinker. This design allows you to more effectively hold bottom with lighter weights. These are a line-through style stinker where your mainline or leader is threaded through the center much like an egg sinker.