Compatible with NIO ALL Series cars, this multi-style smart key case cover provides remote protection with buckle and rope options for everyday use. Material and build - Made from genuine leather with a carbon fiber sport style. It is comfortable in the hand, lightweight yet strong, and visually stylish and durable. - The key ring is zinc alloy, offering beauty and long lasting durability. Design and convenience - Leather carbon fiber exterior design can be hung on a hook. The keychain hook features a curved design for easy belt attachment and to prevent snagging clothes. - Quick release spring mechanism allows repeated presses without breaking. Two use methods provide flexible, convenient handling. Wide compatibility - Multifunctional leather metal keychain compatible with most car keychains. - Also suitable for hooking motorcycle, truck, bicycle, RV, office, home, storage room keys, and other keys or gadgets. Benefits - Provides protective sleeve for your car key, helping reduce wear and tear. - Keeps keys organized, accessible, and securely attached to belt, bag, or hook. - Durable, stylish option suitable for daily use and travel. Use scenarios - Daily carry: attach your NIO key to a belt loop or bag for quick access and protection. - On the go: clip to backpacks, purses, or luggage to keep keys within reach during travel. - Home or office organization: group house, storage room, and office keys on one durable, easy-to-carry keychain.