Krejci Posterior Composite Instrument Krejci Posterior Composite Instrument TNEXBKR1 Rounded stopper for composite adaptation in the cavity, sharp tip for anatomical shaping of the occlusal relief. Where to Buy x Category Dealer PartnersSales RepresentativeStrategic MarketsSchools RepresentativeAccutron™ Equipment Sales Zip Code Find RepresentativeReset Select a category, input a zip code and click on Find Representative, or explore the complete list here.