Clear Glass Mason Jar Beverage Cup, 30-oz Drink Cup with Stainless Steel Lid, Straw Included Durable Clear glass Mason Jar with Stainless Steel Lid and straw. Perfect serving cup for blended drinks, smoothies and other cold beverages. Dimensions: 4" diameter x 6.5" High, Capacity 30-oz each. Ideal for wedding, bar, household, party, or any social gathering. Great gift idea for friends and family.