Often made from lead, a sinker is used to help the rig sink and provides a casting weight so you can propel the rig further. In addition, the sinker holds your rig in position in whatever environment you may be fishing, whether it’s on a calm lake or the open ocean, boat or shore. But use too small a lead and your rig will not reach where it's meant to on the cast, or it won't sink fast enough or hold bottom in current. Too big a sinker and you may break your rod or line, lose fish and miss bites. These are all factors that play into choosing the best fishing weight and we'll discuss each in detail. A sinker is usually made from moulded lead and has a small metal loop or swivel to thread the line through, or a hole through the centre for the same purpose. Sinkers can also be coated – for attractant or camouflage effects. Some can also be made from tungsten or steel but lead is by far the most common type of sinker material. Generally, sizes range from fractions of an ounce for light line fishing and small fish rigs, up to several pounds for dropping rigs in deep ocean. More usually, sinkers in the 0.5–8oz category cover most of what the average angler will use in fresh or saltwater.