Herculite Ultra Flow is a nanohyrid flowable composite that features Smart Placement technology which allows it to flow easily when used as a base/liner and maintain its shape when used in small restorations. For optimal clinical performance, Herculite Ultra Flow also offers outstanding flexural strength, over 300% radiopacity, low shrinkage, easy polishability, excellent gloss retention and low wear. Plus, it's the perfect match with the esthetics and performance of Herculite Ultra, Kerr's award-winning universal nanohybrid restorative.