Check the listing for details. Dental Sectional Matrix System Bands Resin Clamping Seperating Rings 30+2/Set. Condition: New. Listed at 7.11 USD. Dental Sectional Matrix System Packing List: 1Box=30/pcs matrix bands+2 rings Available Model： 1~10Box 30+2 can choose For Low Crown For Normal Crown ★Special reinforced material ensures the appropriate strength and elasticity ; ★Delivering optimal seperation forces and building perfect contact each time; ★Two rings: one for molars with regular crown; the other for molars with low crown or not well aligned and deciduous teeth. 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, you can bid on this item only if 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