The Lens Clean Pen does away with solvents, harsh cleaning products and messy lens tissues. Just use the soft, natural bristles of the retractable brush to dust away any hard particles and the special 100 per cent safe cleaning agent does the rest. As you clean the special tip of the Hama Lens Cleaning Pen flexes as it follows the contours of the lens. And by applying gentle pressure on the lens and by brushing in gentle circular motions the Hama Lens Cleaning Pen removes any smudges in seconds. Besides protecting the brush, the cap also replenishes the brush tip with Hama cleaning compound each time it is replaced and twisted. Hama Lens Cleaning Pen is safe for for all types of video, photo and binocular lenses, including multi-coated. Its a non-fluid cleaning agent with integrated brush, non-toxic and cannot dry out.