Bell sinkers are a type of fishing sinker that are often used in freshwater and saltwater fishing. These sinkers are designed with a bell shape, which helps to reduce the chances of the fishing line snagging on rocks, weeds, or other underwater obstacles.
 
Bell sinkers typically have a hole running through the center, into which the fishing line can be threaded. Bell sinkers come in a range of sizes, from small weights that are just a few ounces, to larger ones that may weigh up to several pounds. The size of the bell sinker you choose will depend on the weight of the bait you are using, as well as the depth and current of the water you are fishing in.
 
The main use of bell sinkers in fishing is to keep the bait or lure at a certain depth in the water. When using a bell sinker, the weight of the sinker helps to pull the line and the bait down through the water, and keeps it at a consistent depth. This can be especially helpful when fishing for bottom-dwelling fish like catfish or trout.
 
Bell sinkers can also be used in combination with other types of fishing sinkers, such as egg sinkers or split shot sinkers, to add additional weight and control to your fishing rig. When using multiple sinkers, be sure to adjust their placement on the line so that they are evenly spaced and the bait remains at the desired depth.