X ray film holder (also for digital imaging plate), very perfect system helps to get proper radiograph 19 Bite Blocks: Posterior bite block-yellow Anterior bite block-blue Bitewing bite block-red Endodontic bite block-green 5 Aiming Rings: Posterior yellow Anterior blue Bitewing red Endodontic green 5 Indicator Arms: Posterior yellow Anterior blue Bitewing red Endodontic Chrome (Metal)