The glass mugs below range in size from 17 ounce, 15 ounce to 1 liter. We offer 15 ounce glass tankard mugs that can be engraved. We have 15 ounce mugs with an antique pewter finish casting holding a changeable 2 inch medallions insert with an area for personalization. And we have 15 ounce mugs with a plain antique pewter finish casting for engraving. The other glass mugs are licensed military mugs in two sizes, 1 liter and 17 ounces. We carry mugs for the main military branches including the Army, Air Force, Navy, and Marines. We personalize these mugs with name and rank. Personalization pricing is found on the glass mug pages. There is no extra charge for personalizing the military mugs.