This outdoor cup set is made of stainless steel, so it is durable and clean. After use, simply put these in warm water, hand wash with mild , or put them in the dishwasher, wipe , and place it in a dry place, and it will look . The storage bag is made with mesh so it is highly breathable, and you can leave it in the storage bag after washing it, and it is convenient to air dry. This highly portable tool can be used for picnics and everyday use, such as camping, touring camping, mountain climbing overnight tents. Features - Color: Silver. - Material: Stainless steel. - Size: 21.50 x 9.50 x 9.50cm/ 8.45 x 3.73 x 3.73 inch. - Set of 4 double-walled stainless steel mugs, with storage stand mesh case. - The double-wall stainless steel construction provides excellent cold retention and heat retention. - And is less likely to be affected by the heat on the outside of the cup. - By storing it in a dedicated stand that can be stacked and stored. - It looks smart and prevents it from falling over even when stacked. Package list: 1 set x cups