Overview Care Instructions Return Policy Description:With a subtle lip around its edge, F/style’s elegant coaster catches condensation, protecting finicky surfaces from unwanted stains. Made of copper, each coaster will develop a patina with use. Measurements:3’’øHistory: Emi Igarashi and Wakano Hoshino, both born in Niigata, Japan, co-founded the brand F/style in 2001. By focusing on the art of making things, or "monozukuri" in Japanese, F/style's mission is to re-popularize ancient Japanese craft by applying them to new and contemporary designs. Based in Igarashi and Hoshino’s hometown, F/style creates made-to-last pieces that are thoughtfully designed for the home and personal use. Materials:CopperNote: Copper will naturally patina over time with exposure to oxygen, heat and other environmental factors. Exposure to water will accelerate the patina process. Variation: Available in copper natural, copper black or brassCare Instructions:To remove tarnish and restore shine, clean copper with minimally abrasive metal polish. Returns must be made within 2 weeks in original, unused condition with all packaging for either 1. Store credit for the full amount or 2. Refund - minus a 20% restocking fee. Tortoise does not cover the cost of return shipping or the cost of re-shipping an exchange, and the cost of shipping for returns and exchanges is the responsibility of the customer.