It is a mesa structure. Not only did we ship the item shipped within 5 days after 8 days passed without any notice, the "packing set" that was sent is only for one cylinder, that is, for one plug hole for three cylinders did. Does it make 917 yen? Since it is a set sale, usually the necessary amount is included in one bag, and there is no work like re-packing with this company. Please respond as soon as possible.