Opal style mug with intense pantone matched body colour that will not fade during the printing process, the inside of the mug remains white. The design has been inspected no less than 7 times to ensure you receive the best possible quality. Your design is screen overprinted.This mug is dishwasher safe; it will withstand up to 500 dishwasher washes. Although the mug is microwave oven safe, prolonged heating may damage the surface.The mug base can also be printed in 1 colour, extra charges apply.