Brass will tarnish with wear i.e. it oxidizes naturally with time and with contact to the skin and may loose its bright shine. We recommend storing the jewelry in individual zip lock/ cloth bag or box when not in use and avoiding regular exposure to water or humid climatic conditions.
Disclaimer: These are made of metal alloy and may have slight irregularities or imperfections. These irregularities are the result of the human involvement in the process.