1. Through the PAHs,msds, preservative,cd,pb,AZO,EN71-9,EN71-3,BTX authentication 2. Cheaper price, quality is better Metallic Acrylic paint1.It is rich of pigmentaion.2.very good lightfastress ,very adherent and indelible .3.It can be used on canvas wood metal and so on.4.Outstanding due to their special brilliance and shiness.