Check the listing for details. Dental Elastic Fixing Wedges Matrix Matrices Dam Composite Rubber Dam Hard Set. Condition: New. Listed at 5.69 USD. Yellow wedges - 2,0 mm thick 20 pcs., Soft Blue wedges - 2,5 mm thick 20 pcs., Hard Elastic wedges can be used as fixing wedges and also as a stabilising cord upon working with Cofferdam (Rubber Dam) system. Special silicone rubberHeat treatment up to 150 °C (302°F)provides complete gingival margin adaptation and sealsimultaneously wedges from both buccal and lingualis compatible with all inter-proximal matrix systems 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. This item has been cleaned and treated according to the manufacturer's instructions