Made by baking in the oven. Coated with oil-resistant and water-resistant coating and baked again for finishing. Pairs well with linen clothing. Please see the second photo for the size. As this is handmade, there is no guarantee of its strength. I would like to sell it to someone who understands this. If you would like to purchase multiple brooches or earrings, please comment before purchasing. I will give a small discount. Oven clay Nordic Mug Black cat