Multi-layer synthetic resin teeth Description: Product manufacturing process being used ISO9002 quality control, technical indicators are better than YY0300 industry standards. And through the European and CE0473 9002/EN46002 ISO certification. Multi-Color synthetic resin tooth design 20 moulds for anterior and 9 moulds for posterior. Popular shades: Base VITA 16, from A1 to D4. [Model] # 22, # 23, # 24, # 25, color and 1-3. [Specifications] 28*1,8*1,6*1.