MASK S4 - BLACK SHINE. Kuboraum's Mask S4 BS eyeglasses feature a classic squared acetate frame with a prominent bridge, metal engraved hinges with tortoise elements, and transparent acetate temples with exposed decorated metal wire core. Dreamed in Berlin, Handmade in Italy. Material: Mazzucchelli acetate, metal. Lens: clear. Material: ACETATE, METAL. Made in: IT. WARNING CALIFORNIA PROPOSITION 65. This product can expose you to chemicals including Nickel (Metallic), which is known to the State of California to cause cancer. For more information go to https://p65warnings. Ca. Gov. California Health & Safety Code Section 25249.6. Shipping eyewear products to US only. For US customers, eyewear products are categorized as Class 1 medical devices by the 21 Code of Federal Regulations (CFR) - Food and Drug Administration (FDA). Baltini ships eyewear orders on a Delivery Duties Paid (DDP) basis.