1.Material:316Lstainlesssteel(NickleandLeadfree)Namely:surgicalsteel2.Surface:highpolish3.Quality:AAAquality4.TheFashionCharmLocketsh***eseveralShape,forexampleCircle,Heart,rectangleetc5.Aboutsize:Diametersize:20mm,25mmand30mmThickness:6mmTheinnerheight(BetweenthetwoGlass)about3.6--3.8mmOpeningangle:30°-75°6.Finishedin:MattorShinythatasyourrequest.7.ToughenedGlass8.Color:rosegold,gold,silver,cho***ate,blackcolor,allcoloris***ailable.9.Rust:NoneFade:NoneAllergy:None)