1、Stackable Design: These camping cup set of 4 adopts stackable storage design with folding handle, very portable and space saving. Comes with a sturdy cup holder stand for easy storage. 2、Stainless steel Material: Made of stainless steel material, this camping mug set is rustproof and will not leave any metallic taste while use. Maintain the natural flavor of beverages and food. 3、Wide Applications: Portable stainless steel camping cups are perfect for outdoor picnic, camping, mountaineering and skiing. And is also very suitable for gift giving. 4、Double Layer: These stainless steel camping cups are in a double layer construction, which can prevent your hand from heat hurt. Also, it maintains your drink's temperature and also prevents condensation. 5、Set of 4: This stainless steel cup set comes with 4 pieces could meet your needs for hot or cold drinks such as coffee, water, wine, beer, milk and more.