Made of thick stainless steel, so I think it can be used outdoors. It's the type that uses water to extinguish, but even if it gets dirty, it can be easily disassembled and washed, keeping it clean at all times. It has a sturdy construction and a sense of weight, and can be used in various scenes such as shops, homes, and outdoors. Used item, some signs of use, but still usable. There are a total of 9. We will handle bulk sales. Please consult with us as we will discount the shipping cost for bulk purchases. Stored at home, used item. There may be minor scratches that do not appear in the photos due to storage. It will be delivered as is, as it is stored. We will pack and ship using recycled materials. We may change the shipping method without notice. We will add photos and answer questions, so please feel free to ask in the comments section. Instant purchase without comments is welcome. Regardless of whether there are comments, questions, or negotiations, we will prioritize the person who purchases first.