Jacques Marie Mage FACTORY - SULFUR (JMMFC-15Z) are round pop-art inspired eyeglasses handcratfed Japan. They feature grey 10mm cured cellulose acetate frame, custom double laminated acetate temples featuring precious metal hardware, exposed wirecore, signature sterling silver horizontal arrowhead front pins, tension-secured custom 5 barrel hinge with spur-shaped rivets, dove grey 4 base CR39 lens with backside anti-reflective treatment, and 100% UV protection.