JJC CL-P4 Lens Cleaning PenJJC CL P4 Lens Cleaning Pen is a lightweight, pen shaped cleaning tool, which can apply to clean optical parts, such as camera lenses, viewfinders, filters and display screens of cameras, camcorders, phones and tablets. One end of cleaning pen is a soft brush. You can push the button halfway or fully push it to clean the dust, fingerprints and other debris in different parts. When not in use, you can put on the dust cap for soft brush to prevent dust.