Proprietary reinforced material eliminates risk of breaking or spring off unlike metal rings, Exceptional strength resulting in guaranteed optimal separation forces and stability every time, Delivers perfect tight contacts every time, Disposable-hygienic & eliminates hassle of cleaning & autoclaving rings, Stackable for simultaneous restorations, Anatomical, rigid and adaptive characteristics to achieve perfect seal at gingival margin, Design is gentle on gum and rubber dam and, Stackable and can be placed without removing ring for improved seal of the box with ease. Anatomically correct shape, Non-stick composite does not stick, Super-thin (30m), but resistant, for tight contacts, Easy placement and removal with Pin-Holder design, Saves time and money due to less finishing. Pin Holders are designed to perfectly fit the WagoTrix Matrix Band and WagoTrix Wedge holes to make matrix band and wedge placement and removal easy, secure and stable, ., Forceps prongs are designed to perfectly fit the WagoTrix Universal Ring in a secure and stable manner during ring placement.