This is a UM30 monkey wrench made by LOBSTER (ロブテックス). "JAPAN" is marked on it. It has only been used a few times, and the overall condition is good. There are some minor scratches from use and storage, but there are no problems with its operation. It opens and closes smoothly and is well-made, so it can be used for a wide range of applications such as factory work, maintenance, and DIY projects.