Double sided with the Western Star Logo/ Model 6900 on one side and the 'bad assed' Cummins X15 on the other. Though the mugs are dish washer resistant it is recommended to hand wash and dry to prolong the vibrant colour of the graphics. Postage is $15 and a white presentation box is optional at $4. We have over 400 designs all can be seen in a Photo Album on our Facebook Page.