Specially designed for painting, writing, or decorating on non-porous surfaces such as ceramics, porcelain, and glass, these ceramic markers have excellent adhesion. Without baking, marks can be wet-erased for temporary decoration. After baking (230°C for about 30 minutes), designs become permanent, water- and scratch-resistant, making them perfect for DIY personalized cups, plates, tiles, and other projects. Note: Not suitable for food contact.