This is a base for attaching a GIVI top case to the Honda X-ADV (RH10) genuine carrier. The type is M7. This set includes the SR1186, which is necessary to install this base. The SR1186 is a rear rack that allows you to mount GIVI's Monokey or Monolock cases, and it can only be attached to the genuine rear carrier. There are also instructions for installation. Regarding the M7, it originally came with 6 cosmetic caps, but 2 are missing, leaving 4. Cosmetic caps were only installed on the 4 bolt locations. There are no other missing parts, and it can be installed immediately. I used a GIVI Trekker Outback (OBKN58A) on my X-ADV, and it was a full pannier setup using side case holders. It was used for about 4 years and there are no major scratches, but please understand that this is a used item before purchasing. Thank you.