Rebel Urban Mug: Rebel sets a new standard in luxury dining by turning its back on convention and delivery English fine bone china with an industrial-chic twist. Developed by Alchemists for over 4 years, every piece is dusted by hand with Royal Crown Derby's secretive "dragon skin powder". The result is as visually striking as it is original.: Rebel By Royal Crown Derby: : Blue - Bone China - 8.9:cm - 3.5:in - 34:cl - 12:oz - Round - Fine Bone China - Microwave Safe - Dishwasher Safe - Oven Safe to 100c - Durable Glaze - Lightweight and Elegant - Heat Chill Retention - Strong Material