1. Convenient storage, no slippage 2. In addition to the key, it can also store a USB flash drive to expand its functions, such as a bottle opener, emergency knife, screwdriver, etc. 3. Small and slender, more concise 4. The buckle that comes with the standard configuration is not just decoration, you can hang car keys, door cards, accessories, etc. 5. The carbon fiber has its own texture, which prevents rust and does not fade
