A Washer used at the end of a knife handle is a small, often decorative, component that covers the end of the handle. The cap is typically made of metal such as brass, nickelsilver or other durable materials and is designed to provide protection to the end of the handle from damage or wear. Additionally, the cap can add weight and balance to the knife, depending on its size and material. The cap can also serve as an aesthetic feature, providing a polished and refined appearance to the knife. Overall, the cap is a functional and decorative component that can enhance the durability, balance, and appearance of the knife handle.