Bars are silver bullion in the form of generally less refined, rectangular bars.
They frequently have the lowest premiums.
Bars can be all different shapes and sizes, even in the form of a die!
Bars are preffered by most stackers, including myself.
They can be stacked, they are easy to handle and store and buying them in bulk is much easier.
Bars are mostly made by private companies, not mints.
Examples of different, recognised bars:
The best bars are .9999 fine, but .999 fine is enough for most stackers.
Bars can be bought from sites like PAMP, Amazon and eBay for good prices
The bars can have designs or styles and can even be in the shape of a duck!