* BTaT royal coffee mugs are made of bone china porcelain; the inside of the mug is smooth while the outside is ribbed, and the handle is comfortable to hold. * Bone China teacups are perfect for your favorite espresso drinks, hot chocolate, coffee in the morning, or having tea with your friends. * They are suitable for various dining or afternoon tea at home, office, or restaurants and provide an elegant drinking experience. * Due to the gold trim on top and on the handle, coffee mugs cannot be put in the microwave or oven. It is safe to put them in the dishwasher, but hand washing is recommended. * BTaT royal coffee mug set is shipped in a beautifully designed printed box, great for a gift.