Check the listing for details. Cybersonic Traditional Replacement Brush Heads, 8 Pack. Condition: New. Listed at 49.99 USD. Replacement brush heads are compatible with all Cybersonic Systems including the Cybersonic 3, and Cybersonic Classic Traditional replacement brush head is designed to mimic a classic manual brush, giving you the familiar rectangular design with the power and precision of the Cybersonic systems Soft bristle design combined with the patented Harmonic Resonance technology that comes with every Cybersonic kit, uniquely uses each vibration at a specific frequency for a perfect dentist like cleaning every time Cybersonic has over 25 years of making oral care easier, faster, and a more effective - designed by Dentists for those looking for the just left the dentist feeling every day Our guarantee to you is 100% customer satisfaction, with a 30 day money back guarantee no questions asked, along with a full 1 year manufacturer's warranty