I will be taking a break from Mercari once I sell the current items listed. I will also be lowering the prices, so please consider purchasing if you are interested. These are used items, so please refrain from purchasing if you are concerned about minor details. This is a set of front and rear lights from Knog. They have a square shape and a stylish USB charging port. I had them for city riding, but I haven't been using them lately, so I'm selling them. The batteries don't seem to have degraded, and they are a set of lights with very high visibility.