The Stanley Adventure Shot Glasse+Flask Set 10-01883-035-BLK provides you with two stainless-steel vessels: a double shot glass and a flask. Both are crafted with a durable, 18/8 stainless steel construction, so they can withstand the wear and tear of an adventurous lifestyle while keeping your beverages hot or cold for up to four hours. With a leakproof and BPA-free design, it's the perfect combo for hiking, camping, and other outdoor activities.