promotional crafts wine bottle opener zinc alloy keychains keyring 1.own factory, 12 years 2 OEM ... souvenir beer glass print logo metal keychains keyring keyholder Materialzinc alloy, or iron, stainless steel, brass, etcSizecustomizelogo print logo or ... PlatingVarious plating by order, gold, Nickel, brass, copper, Silver, Anti-nickel, Anti-brass, Anti-copper Anti-gold, mat-gold, mat-nickel, etc ...