ContacEZ Restorative Strip System is an innovative, precision dental strip system designed to achieve ideal proximal contact adjustment and complete marginal seating of crowns, veneers, inlays/onlays, and proximal contouring of composite fillings accurately with minimal time and effort. Ideal Proximal Contact Adjustment Box of 20 - Contents: (4) Black Diamond Strip (4) Orange Serrated Diamond Strip (4) White Serrated Strip (4) Blue Serrated Strip (4) Gray Final Polishing Strip