Can the lion bronze seal be used casually?

No.

The lion bronze seal symbolized status in ancient times. Now it is related to Feng Shui and cannot be used casually.

In ancient times, the copper lion seal was reserved exclusively for the emperor. Today, the copper lion cannot be used just because it wants to be used. Otherwise, it will not have any good Feng Shui effect, but will be harmful rather than helpful. As to what Feng Shui objects are suitable for an individual, it is best to determine the appropriate one based on your horoscope and five elements. It can be based on your birth date, otherwise it will be harmful to you rather than beneficial.