- Pre-packaged and pre-mixed orthodontic prophy pumice. - Pre Bond prophy pumice is used to clean the tooth surface prior to acid etching. - No flavoring, fluorides, oils or chemicals which could leave a film that may inhibit or weaken the bond. - Use after removal of brackets, bands and bonding material as a final clean up for that new bright smile. -1 Pack contains : 200 cups. **For further product information, please contact Chat Support**