You can't simply choose one of these questions. In addition, there is basically nothing to say about what material to choose for the wallet. The ancients used cloth bags to pack silver! You can choose this way, and you can determine the five elements of numerology according to your own attributes. For example, if you were born in the sand this year, you can choose a khaki wallet, which belongs to the earth and is native to gold. It is best to determine which five-element attribute belongs to according to the eight characters, and then determine the color of the wallet according to the five-element attribute.
In fact, good luck does not lie in the material and color of the wallet. Good or bad luck is related to marriage, residence, personal words and deeds. These three aspects are done, and it doesn't matter whether you have a wallet or not! It will definitely be rich!