Quran Course Teacher Printed Mug - Porcelain and Cup with Handle - What You Need to Know About Gift Mug The mug is made of porcelain material. Sublimation printing technique was used. The print on the cup is long-lasting and permanent. For long-lasting use, we recommend hand washing in warm water. Pressure is applied to both surfaces of the glass. The material thickness of the cup is 4 mm. Product Dimensions Height: 9-5cm. Diameter: 8cm.