The JJC CL-P4II Lens Cleaning Pen is a lightweight pen-shaped cleaning tool that can be used on clean optical parts such as camera lenses, viewfinders, filters, and screens of cameras, camcorders, phones, and tablets. One end of the cleaning pen is a soft brush. You can press the button halfway or fully to clean dust, fingerprints, and other residues on various parts. When not in use, you can put the dust cap on the soft brush to avoid dust. The other end is a smartly designed dual carbon tip, which has a circular and a triangular cleaning tip. The circular tip is suitable for cleaning the round optical screen, while the triangular cleaning tip fits the cleaning corners of the viewfinder or screen. There is carbon dust in the cap for replenishment, and the non-liquid carbon cleaning compound will not spill or dry out. The carbon compound is non-toxic and environmentally friendly, safe for all optical parts. Additionally, 2 extra dual carbon cleaning tips are included in the package as a backup and come with 1 microfiber cleaning cloth that helps remove residues. The CL-P4II is an ideal choice for cleaning optical products.