IMPROVED DESIGN AND MATERIAL offers a more elevated experience to keep your keys and airtags protected and built to last with a unique material that's flexible and rugged at the same time. PREMIUM AND DURABLE CONSTRUCTION. Ultra-Flexible Silicone Strength on the KeySmart Air Flex features a sleek black finish and soft-touch feel that is oil, grease and water resistant. ORGANIZE AND TRACK YOUR KEYS. The KeySmart Air securely fits an Apple AirTag, helping you keep track of your keys with ease. It also holds up to 5 standard keys. Standard key would be considered a KW1 or SC1 home key with a dimension of 22.5mm W x 52.8mm L x 2mm H. UPGRADED PROPRIETARY SCREWLOCK SYSTEM keeps your items secure over time while maintaining a quick and easy assembly process. SLIM & POCKET FRIENDLY Designed for minimal bulk, this compact AirTag keychain fits in your pocket and includes a carabiner key ring for attaching car remotes or other EDC gear with ease.