"Black can candles" are candles that imitate canned cat food, so-called "cat cans". Not only the package but also the tuna inside was designed to be "real".
The "black can" incense stick is a mini-sized incense stick that burns for about 19 minutes. It has a bonito-flavored scent.
Kameyama also sells "dog biscuit candles," which are candles for dog memorial services. This is characterized by a design that imitates a dog biscuit.
Please refer to Kameyama's website for details such as prices.