This product is an "opened, unused item." It is a gas-powered portable instant water heater. The gas cartridge is US standard, so you can use domestic standard canisters by using conversion parts. It is a dead stock item and is old. Although it is unused, the operation has not been confirmed, so we cannot guarantee its operation. Please note. What I noticed during inspection was that the hose part had hardened due to aging, but it can be substituted with items sold at home centers or online. Coleman Old Vintage Water Heater Hot Water Shower Outdoor Camping Disaster Relief ~If the product's outer box is included~ *1. Please recognize the product's outer box as a packing material to protect the product during transportation. *2. Please note that there may be scratches, damage, or crushing on the outer box. *3. The condition of the box may not be fully captured in the photos. ~Regarding price negotiations~ We will respond within a reasonable range. Please present your desired amount first. We appreciate it more than standard phrases or comments like "How much can you lower the price?" In addition, we cannot be held responsible for shipping issues (water damage, crushing, tearing, or damage). If any inconvenience occurs during shipping, please contact the administration from the buyer. Please be aware that if the transaction is completed as is, you may not be able to receive compensation from the administration. We also want to avoid any trouble during transactions as much as possible. Therefore, if you have any concerns, please consult us in the comment section before purchasing. Also, please refrain from purchasing if you are looking for perfection in a personal transaction or if you are overly sensitive.