Capacity:350 ml / 12 oz Size:9.6 cm (3.7 inch ) high x 8.2cm (3.2 inch) diameter Feature:Heat activated – Pour in hot liquid in order to activate the mug the temperature of the hot liquid should be over 70°C/158°C. At that temperature the color of the mug will change .At normal temperature it s red. Perfect for your friends who really loves interesting and fun things in daily life. quality and cool design this mug will bring a smile to your day. Material:Strong ceramic construction Package Quantity:1 x mug This product can be personalized. Please order first and send your picture to me by Email. .We wish to bring everyone s ideas into reality. We provide the greatest product choice for you such as 3C mugs and dishes wall decorations car peripherals or clothing accessories.