World's First Tesla Key Ring- The Most Convenient and Reliable Backup Key PREMIUM QUALITY AND FASHIONABLE PRODUCT HANDMADE CNICK Ring is made of Zirconia ceramic and gemstone materials. Every ring is handmade to the highest standards, with tons of attention to the details. We managed to make the ring thinnest and the lightest which makes them the most comfortable to wear. NO CHARGING REQUIRED CNICK Ring never needs charging. No longer have to worry about staying without a key when the phone battery is dying or when you just want to spend time without carrying a mobile phone. WATERPROOF All the CNICK Rings are waterproof. No need to remove your ring while washing hands, taking shower, or swimming. The ring is very durable but we recommend avoiding exposure to detergents and heavy lifting while wearing the ring. CORRECT HAND POSITION- HOW TO ACTIVATE AND USE THE RING Find the right sensor spot on the B pillar under the driver-side camera.Touch your knuckle onto the B pillar (knocking position) and do not touch the ring directly to the car.The ring is compatible with Model S and Model X vehicles produced in 2021+ and all Cybertruck Model 3 and Model Y vehicles. CORRECT HAND POSITION- HOW TO ACTIVATE AND USE THE RING Find the right sensor spot on the B pillar under the driver-side camera.Touch your knuckle onto the B pillar (knocking position) and do not touch the ring directly to the car.The ring is compatible with Model S and Model X vehicles produced in 2021+ and all Cybertruck Model 3 and Model Y vehicles.