The Sigma LCF 95 III Front Camera Lens Cap is designed to protect Global Vision lenses from external damage such as scratches, bumps, and impacts. It has a diameter of 95 mm. Along with protection from damage, this lens cap also prevents dust and dirt from entering the lens. The lens is made from hard plastic material and is black in color. This prevents harmful UV rays from entering the lens. It has a push button for opening and closing. Just one press of the button opens the cover and lets you capture images without missing a moment.