Set of 6 - 15-oz Mason Jar Beverage Cups, 6 Clear Glass Drink Cups with Metal Lid, Straw Included Set of Four (6) glass Mason Jar Beverage Cups with metal lids & straws. Perfect serving cup for blended drinks, smoothies and other cold beverages. Dimensions: 3.5" diameter x 5.3 High, Capacity 15-oz each. Ideal for writing contents, a clever comment or names.