The small black DeluxGear Lens Guard is a protective cap for lenses with an outside barrel diameter of 2.5-3.0" (63-76mm), excluding a hood. Because of the Santoprene exterior, liquids will not damage your lens. Protect the lens from bumps and dings with the neoprene interior padding. The Lens Guard comes with a built-in tether strap to keep it attached to the camera.