The Sigma 46mm Front Lens cap for Global Vision Lenses is made to protect the lens of the camera. Its special design makes it convenient for attaching on the lens hood with perfection. One of the primary utility of this front lens cap is to prevent the lens from getting affected due to any dirt and dust. Another important role played by this lens cap is its protection of the lens against any scratches due to accidental bumps. Made to last longer, it is designed with durable construction from high quality elements. This is a replacement lens cap for the original lens cap provided along with the camera.