Check the listing for details. Heepim 6-pack Replacment Heads Compatible with Philips Sonicare. Condition: New. Listed at 18.95 USD. Replacment Heads Compatible with Philips Sonicare, for E-Series Essence, for Xtreme, for Elite, for Advance, and for CleanCare Electric Toothbrush, Toothbrush Replacment Heads Refills, 6 PackSCREW-ON SYSTEM COMPATIBILITY - Perfectly Compatible with Philips Screw-on handles: For Advance, For Essence, For Elite, For CleanCare and For Xtreme handles. Not compatible with Essence plus.TAKE CARE of YOUR ORAL HEALTH - These tooth brush heads help you achieve thorough and comfortable cleaning of hard-to-reach areas by more effectively removing plaque and preventing gingivitis.JUST AS GOOD AS THE ORIGINAL - The brush head is made of genuine U.S. DuPont round-end bristles and it's bristles exactly same as name brand. PP material, more durable and not easy to break. The heads come with a plastic cap over the bristles that keeps them straight and firm until you unpack them.INDICATOR BRISTLES - There is a blue stripe on a section of the bristles that fades with use, so you can tell right away when it's time for a new head. Dentists recommend replacement every 3 months for optimal results.