Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Compact, durable, reliable and functional

The Nikon Lens pen fits perfectly in any pocket or any camera bag and can be used with any digital camera - it doesn't have to be a Nikon or a Nikon lens.I had to wait a month or so for Amazon to receive stock of these cleaners but it was worth the wait. In fact, I came back and bought two more for family members.The pen has two functions, a fine brush on one end and a soft "scrubber" on the other. The scrubber end has a cap, so you do not contaminate the soft pad (which is treated with solution to wipe away harder to remove spots from your lens). The brush end is telescopic. The yellow slider on the side positions the brush in or out of the pen, so you can easily remove any lint or dust that may have gotten on your lens or filter.A must have for any photographer, especially one that is on the road or mobile. You can clean your lens easily and quickly without needing wipes (that you throw away) or liquid lens cleaner and wipes.Highly recommended!