"Macaron" design: The ruler core imported from Germany is covered with the first layer of leather. Very convenient to use and store About the size of a macaron: 1.8in/4.6cm in diameter and 0.75in/1.9cm in thickness. Leather: Maple Leaf Red and Saddle Brown are top layer vegetable tanned leather, and the other four colors are top layer chrome tanned leather. All are the first layer of leather, wear-resistant and durable. We hope to create a long-lasting beauty.