1.Goodmarginalseal.2.Beautiful.Adjustablecolormadeofthesamecolorasrealteeth3.Goodbiocompatibility.Inparticulartheproductionofbio-ceramicdentalpreciousmetalsandporcelainteeth,becauseofitschemicalinertnessandelectricalcorrosionresistant,non-allergictissue4.Extremelyhighstrength.ifyouneedoryouh***eanyproblems,plzcontactme.SkyYangAddress:2/F,Block66,FuminIndustrialZone,PinghuMobile:008613632686067E-mail:dental_lab@Website:http://Skype:tooth_skyMsn:tooth_sky@)