28/400 GPI cap and 33/400 GPI cap collection are designed for brands that prioritize both elegance and functionality. Crafted from high-grade aluminum with a sophisticated matte gold finish, these closures are the perfect match for luxury spirits, artisanal oils, and high-end cosmetic glass bottles. Whether you are looking for the sleek profile of a 28/400 GPI cap or the broader presence of a 33/400 GPI cap, our aluminum closures provide superior corrosion resistance and a sustainable, recyclable sealing solution. Choose a closure that transforms a simple bottle into a premium centerpiece.