aokbean mixed set of 30 skeleton keys in gunmetal black - set of 30 keys aokbean a set of 30 large vintage style skeleton key replicas in a gunmetal black finish. key sizes are 2", 2.3" and 2.4". all keys are double-sided. perfect for use as necklace pendants, vintage wedding decor and escort cards, scrapbooking, and other crafts.