The Mainstays 40 oz Double Wall Stainless Steel Tumbler in Blue with a Diamond Pattern is a durable and stylish beverage container suitable for both hot and cold drinks. This three-piece set includes a tumbler with a 1.2L capacity, featuring a solid blue color with a sporty theme. Made of BPA-free stainless steel, this tumbler is insulated to keep your beverages at the desired temperature. With a convenient handle and drink-through lid, it is easy to use and care for, making it a practical choice for individuals of all ages.