MATERIAL-- Yesfit gold grills for your teeth use the environmental brass to ensure the grillz durable and not easy to break.And then we electroplated 6 times 18K gold on the surface of brass ,so it will never tarnish and is friendly to sensitive skin .Sparkly AAAAA+ cubic zirconia makes it easier for you to catch others eyes. PACKAGE--- The 18K gold diamond grillz comes with four silicon molding bars and a tweezers,which make it much easier to fit.Don't worry you are the first time to use it .Every package includes a instruction for easy molding.These are in put in a transparent box . ONE SIZE FITS MOST--- Our adjustable silicon molding bars custom fit the shape of your mouth. So that means it fits most mouth sizes, regardless of the shape of your mouth, you can still get a custom fit OCCASIONS--This gold grillz for men is very popular with hip-hop lovers because they are bling. They often appear on many occasions ,such as party, rave, discos, clubs, Halloween, birthdays, festivals.