Every spring, millions of canola flowers bloom at a huge field by the Nousaku foundry. The shape of the candle holder is informed by the flower. The solid brass will change its color with patina over time. The item is handcrafted by skilled Japanese artisans using traditional techniques. All products are handmade, handcasted and handfinished with exceptional care which brings out unique variations in each piece. Made in Japan Materials: Brass (copper 60%, zinc 40%) Notice: Wipe off dirt with a soft cloth after use. Never polish with a metal cleaner or metallic sponge. Wash with mild detergent using a soft sponge as needed.