The name speedball is synonymous with quality lettering pens and recognized around the world as the first choice in lettering and calligraphy products. The signature series offers you a beautiful gold and black marbled pen with hand-crafted gold-plated Number 513 ef nib, 12-milliliter of silver pigmented acrylic ink, and 12-milliliter of gold pigmented acrylic ink. The inks are archival, acid free, waterproof and non-toxic. Conforms to astm d4236. Made in usa.