This is a LEGO TECHNIC Crawler Crane, which is already discontinued. The product number is 42042. It is a very rare, new, and unopened item. The original seal tape from the time of shipment is still attached. Although it is new and unopened, there may be some minor scratches due to aging. Please check the condition in the images. It was stored at home as a new item, but please purchase only if you understand that it has been in someone's possession once.