Check the listing for details. 100 Pcs Dental Pro Matrix Bands Adjustable Matriz Matrices System Clamp Tool. Condition: New. Listed at 66.49 USD. Feature ： Material:Stainless Steel MatricesSizes Available:4.5mm Green6mm Blue(6mm for molar,4.5mm for premolar and kids)Intended Use :- Thin Metal band which is tightened around the tooth to form a barrier and allow application of material. Used when performing fillings or similar operationsDisposable.Super Good QualityClockwise to tight it arrond tooth.Anti-Clockwire to loose the band.Advantage:Matrix-Profect system is the next generation matrix band engineered to save valuable preparation time. The sophisticated design allows easier placement and improved visibility. Single-use to prevent cross-contamination.Pre-assembled with a sliding ban deflector and smooth tightening mechanism. Package : 50 Pcs 4.5mm+ 50 pcs 6mm（If you need one model, please leave a message or contact me） FDA Statement: The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item.