Please note the following important information regarding the machined finished aluminium used in this product: The aluminium material used in this product features a smooth surface finish; however, it is important to note that it is not mirror polished. While the surface exhibits a refined appearance, it may not achieve the reflective perfection associated with mirror-polished finishes. Due to the nature of aluminium, which is a relatively soft material, it is susceptible to wear and minor scratches over time with regular use. This is a natural characteristic of the material and should be expected, as it adds a unique patina and individuality to the product. The raw machined inner surfaces of the aluminium may develop a patina over time. This patina is a natural oxidation process that occurs due to exposure to the environment. It can result in subtle color changes and enhanced character, showcasing the authentic aging process of the material. We believe that these inherent qualities contribute to the charm and uniqueness of the product. Please consider these aspects before making your purchase, as they are part of the desired aesthetic and experience associated with machined finished aluminium.