YYGIFT Set of 4 Stainless Steel Coffee Cups Portable Travel Drinking Cups Shot Glass with Black Leather Package Case These shot glasses are made of high quality stainless steel for long lasting durability. Set of 4 stainless steel cups come with black leather package case. Mini size,portable,easy to carry. Stackable and easy to clean,very convenient. Great for the outdoors,hiking,camping,parties and more.