Item received promptely. For some reason I expected it to be much bigger, it came in a hard plastic bubble and was about the size of a large walnut. It fitted on my sons moutain bike a treat and the light was excellent. It has not had a lot of use and it does cross my mind that as it clips onto itself there is always the danger that some light fingered person might unclip it just as easily. However you could easily put it in your own pocket to keep it safe. If I was being picky it is difficult sometimes to find the click under the rubber to switch on and off but I am sure that would become easier with use, it is not shown where to press on the top, but it is such a small area a few random presses gets there in the end. Very pleased with it overall.