Brass Carabiner Key Hook Vintage Key Holder Handmade Parts A simple yet impactful design that you won't get tired of. Enjoy the weight and discoloration. It also goes well with leather goods and American casual wear, and is recommended for those who want to express their individuality. For belt loops, bags, cars, motorcycles, house keys, etc. ■ Brass brings out the taste and charm of aging, allowing you to feel the change in expression over time, rather than just deterioration. ■ You can enjoy a classic vintage feel with the unique blackening and verdigris color that is different from metals such as silver, platinum, gold, 18k, and titanium. Individual differences will occur in the aging process depending on how you care for it. It is original and becomes a unique item.