JJC 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. The other end is a smart designed dual carbon tip, which has a circular and a triangular cleaning end. The circular end is suitable for the round optical screen cleaning, while the triangular cleaning end fits cleaning angles of viewfinder or screen. There is carbon powder in the cap for supplement, and the non-liquid carbon cleaning compound won’t spill or dry out. The product is easy to use. It’s safe and environmentally friendly.