I was only attracted to this lens pen because it's a Nikon product and it had a bunch of good reviews on it. However, when I received the item it was in a used condition (although I paid for a brand new one from "Shopit").Aside this, the brush works fine, I use it to clean dust particles off the camera and lens.The downside of it, is the tip brush usually aiming at cleaning finger prints and tough marks on your lens glass. When I first received the item I opened the cap where the tip is located. I applied it on my finger and I had a black ink-like circle on it. So I thought I might have a bad copy as it was used. Nonetheless, I checked other reviewers comments and it seems that everyone is facing the same issue. So I preferred not to use it on my lenses as it can damage the expensive glass.Better use a microfiber cloth along with a rocket blower to clean the lens.