Genuine OEM Citroen Lock Key Blade, part number 1617020180. This component is the physical key that engages with the lock cylinder to operate the vehicle's locking mechanism, allowing for secure entry and ignition. It is a small, precision-machined metal part, weighing approximately 0.019 kg. Choosing a genuine OEM key blade ensures it is cut to exact factory specifications, guaranteeing smooth operation and proper engagement with the lock cylinder for optimal security and longevity.