Blue LED Light Therapy Toothbrush Replacement Color/finish: black Suitable for all skin types Specifically designed for the LED Series6 toothbrushes, Beewell's unique toothbrush replacement heads are powered by LED in each head to be compatible with the rest of your Beewell oral care products. Blue for whitening Red for inflammation Each pack contains 2 replacement heads. The American Dental Association recommends to replace toothbrushes every three to four months or more often if the bristles are visibly matted or frayed. Pull the old toothbrush head off and click the new one on. Happy Brushing! Replace every 3 months or before if needed This product is not tested on animals This product is paraben-free Imported All items for external use only Contents of set: 2 Replacement Heads