This kit contains twelve items for metal polishing! One 9 orange airway to be paired with our brown tripoli compound bar, one 9 yellow airway to be paired with our high luster green rouge polishing compound...both airways have a 5/8 arbor hole. Additionally this kit has many essential accessories such as a safety flange, one 2 scuff polishing ball and a 2 muslin cone polishing buff for the hard to reach areas. For sanding, this kit has a 9 Maroon Satin airway which finishes like a 240 or 2