Angled with both ends working to take both anterior & posterior radiograph, Help taking perfect & accurate pictures, Help finishing the technique photograph or correcting the angular bisector, X-ray film holders with an aiming ring that allows the X-ray cone to align with the appropriate tooth structure easily and precisely every time, Saves time and eliminates errors, Patient friendly, No metal components, Made of sturdy precision molded plastic, Autoclavable, Economic, Easily used, Durable