Personalize these stylish coffee cups for your next event and create a fun memento for guests to take home!The coffee mugs are made of hard molded plastic with two layers, a black inner layer and a clear outer layer. The mug holds 16 oz. The top screws on and has a handy clip that you can open and close to drink your hot or cold beverage.The top of the mug unscrews to give you the ability to place your own design in between the two layers. When closed, the message is protected by the inner and outer layers of the mug. This is the perfect place for you to put your own personalized message that can be viewed thru the clear outer layer and protected by the inner layer.We print on thick paper stock, diecut to fit perfectly inside the mug. You can choose from our large selection of colors, designs and adorable themes and sayings and even add your own name and date. Get creative, use our unique Design Tool to make your own design and preview it online.