the Stainless Steel Metal Drink Glasses Are Stackable, They Can be Stacked Together When Not in Use & Without Taking Up Space; Lightweight, Easy to Carry with No Burden, & Can be Carried Freely in Your Backpack Rucksack. This Pint Cup Gets the Best From Cold Drink; When You Want to Drink Iced Coffee, Iced Beer, or Other Iced Drink, It Can Bring Happiness of Drink Iced Drink to the Fullest!the Pint Cup Are Not Easy to Deform & Resist Falling; Keep You Away From Fragile Troubles When Using Glass Cup. This Stackable Tumbler is Perfect for Home, Party, Camping, & Outdoors, You Can Take It Anywhere & Use It!