Keep Calm and Drink On, 16-ounce Mason Jar Beverage Cup with Screw-on Stainless Steel Lid and Handle - Clear Glass with Red Letters Clear glass mason Jar beverage cup with screw-on stainless steel lid & handle. KEEP CALM AND DRINK ON! is printed on one side of the mug. Dimensions: 3.5" diameter x 5.2 High, Capacity 16-oz each. Perfect for any restaurant, bar, household, party, or social gathering. A great gift idea.