The All-in-One MetaFix matrix, with the innovative integrated tightening /opening system, is the solution for Class II – MO/OD/MOD fillings. Aiding in creating an effective contact: Integrated clamping system for easy and stable tightening, No additional tools needed, Contoured shape for perfect contact point control, Anatomical design suited for better cervical adaptation and deep cavities, Three sizes available for better marginal adaptation to any posterior tooth (premolar/molar), No overhangs nor extensive finishing needed Light matrix system for excellent patient comfort and better visibility of the working area.