Karim Rashid Knuckles Porcelain Mug- 10 Oz (Fusion) High-quality exterior enamel protects against metal marks and other damage, exclusive designed by Karim Rashid Hard-wearing, impermeable finish fired at temperatures as high as 2192F. Design is applied using exclusive Eco-friendly Pad Printed technology Capacity: 10 Oz Unmatched thermal resistance from -65F to 500F. Safe for the freezer, microwave and dishwasher Less than 1% porosity, blocking moisture absorption which can lead to cracking, crazing and rippling along the interior