YAMAHA YAMA COMPRESSOR Compressor CO-100 This item has not been used for a long period of time, and therefore, power-on and operational checks have not been performed. It is unknown whether it functions correctly. Please understand that this is a junk item and sold as-is before purchasing. Regarding the appearance, there are scratches and marks from use (please refer to the photos). Included items: Main unit only - Operation is not guaranteed. Please consider this item for repair or parts. - Returns and claims are not accepted, so please be aware of this beforehand.