IPR ContacEZ® Complete Strip System 0.07-0.30 Starter (Yellow) 0.07mm, Single-Sided | Extra-Fine Diamond Single-Sided Opener (Clear) 0.10mm, Single-Sided | Medium-Fine Diamond Opener (Red) 0 .12mm, Double-Sided | Medium Diamond Single-Sided Widener (Cyan) 0.15mm, Single-Sided | Medium-Coarse Diamond Widener (Blue) 0.15mm, Double-Sided | Coarse Diamond Extra-Widener (Green) 0.20mm, Double-Sided Coarse Diamond Super-Widener (Purple) 0.25mm, Double-Sided | Coarse Diamond Mega-Widener (Brown) 0.30mm, Double-Sided | Coarse Diamond The ContacEZ® IPR Strip System is an innovative interproximal reduction system that makes interproximal reduction safe and accurate without creating sharp corners or subgingival ledges. Designed for use with Invisalign®, ClearCorrect, eCligner, Six Month Smiles®, and other orthodontic treatments, these flexible diamond strips curve and conform along the natural contours of the teeth to maximise patient comfort and safety. Ergonomic, single-handed design Provides optimal tactile control Will not remove excess enamel Will not cut lips or gums Prevents sharp corners or subgingival ledges Effective for anterior and posterior areas Central opening for maximum visual perception Saves chair-time