Although it is new and unused, the outer box has scratches and tears due to home storage. If I take it out of the box and fold the outer box for shipping, I can offer a small discount. [Pen-type UV Sterilization Light "UV Sanitizing Pen"] The far-ultraviolet rays with a high sterilization effect of 253.7nm wavelength emitted from the tip of the light-emitting part directly act on the DNA of bacteria and kill more than 99.9% of bacteria. By regularly irradiating areas where bacteria are likely to breed, such as around the toilet and toys that pets lick, you can ensure a hygienic environment. In addition, it meets the IP67 class waterproof standard, and if you put it in drinking water and stir it, you can significantly reduce bacteria in the water. It can be used for pet supplies, as well as on computer keyboards, door knobs, and other places.