When the engine start/stop button is in the OFF state, the steering wheel is locked to prevent theft. When the door is opened or the smart key is removed from the smart key cylinder, the steering wheel is automatically locked. When the engine start/stop button is in the ACC state, the steering wheel will automatically unlock. No noise, strong power, durable and excellent quality. Simple installation, no complicated tools required, convenient to use. Specifically designed to fit Mercedes Benz W204 W207 W212. This is a 1/4" NPT 45-degree tire inflator valve connector. It is made of solid steel with precision machining for leak-free performance. Features a built-in shutoff valve and 45-degree head for easier connection. The ball foot tire chuck is ideal for tire inflation on various tires. A practical and useful product. Features: 1. Solid steel construction, high strength, high performance, and high reliability. 2. Built-in shutoff valve, 45-degree head design for easier connection. 3. Ball foot tire chuck suitable for tire inflation on various types of tires. 4. 1/4-inch NPT female threads. 5. Easy fit to valve for simple installation. Specifications: Material: Steel Color: Silver Size: 3.3 x 2 cm / 1.3" x 0.79" Diameter: 1.8 cm / 0.71" Type: 1/4" NPT Head Angle: 45 degrees Package Weight: 33 g Package Included: 1 x Tire Inflator Compressor Valve 1 x Wheel Lock Motor Note: 1. Please allow 1-3 cm error due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated the same; the item color displayed in photos may differ slightly from the actual object. Please refer to the physical product as the standard. 3. Please double check the part number of your item; compatibility information is for reference only. 4. If you are unsure about the item, please before purchasing to avoid returns. 5. The new or old version of this product may be shipped at random. Please ensure you are comfortable with this before placing your order.