OEKO-TEX® STANDARD 100 is one of the world’s best-known labels for textiles tested for harmful substances. It stands for customer confidence and high product safety. Our Metal accessories (including metal button, snap fastener, rivet, eyelet, hook & eye, buckle, D-ring, stopper/cord ends) made of brass, zinc alloy, and aluminum, with surface finishing in antique brass, dull silver, antique silver, nickel, antique pewter, and antique copper, with or without lacquer; including painted button (dyed-to-match) and Metal zipper with closed or open-end (assembled) are OEKO-TEX Standard 100 certified.