With which weapon did Rama kill Ravana?

With which weapon did Rama kill Ravana? According to knowledge In the Hindu epic Ramayana Rama the protagonist, defeated and killed Ravana, the demon king of Lanka using a divine weapon called the Brahmastra. The Brahmastra was a powerful celestial weapon granted to Rama by the sage Agastya Muni. It was an arrow capable of immense destruction and could only be used once. Rama invoked the Brahmastra and fired it at Ravana during their final battle ultimately leading to Ravana's demise.