The video features a close-up view of a key being inserted into a lock. The key is made of brass and has a series of cuts along its edge. The lock consists of several metal rods that are arranged in a specific pattern. The key is inserted into the lock, and the cuts on the key are lined up with the rods in the lock, allowing it to turn and open the lock. The video provides a detailed view of the key and lock mechanism, highlighting the precision required to insert the key correctly.