CANAL DETECTOR is intended for use during endodontic treatment to identify the root canal orifices. Also for detecting cracks. Use: Insert 1–3 drops into the bottom of the pulp cavity, wait 5-10s, rinse and dry. Points intensive dyed in blue indicate the root canal orifices. Ingredients: methylene blue, propylene glycol, water. Package: Syringe of 2ml + disposal brush applicators.