Common package sizes range from about 9 ounces up to 20 ounces, with 9 oz, 10 oz and 20 oz packages frequently available.
Dark baking chocolate is sold as standard chips, larger chunks, and melting wafers made for dipping or coating, so multiple shapes and formats are offered for baking and candy-making.
Options include no-sugar-added baking chips sweetened with stevia and products that avoid refined or cane sugar, so you can find both reduced/no-added-sugar and no-refined-sugar choices.
Some items highlight very short ingredient lists with claims like "crafted with only two ingredients" or "3 simple ingredient chocolate chips," emphasizing minimal or clean ingredients.
Chunks generally deliver a slightly more intense chocolate flavor and a bit less perceived sweetness; their larger shape and appearance can also give baked goods a premium or fancier look.