The Wellness 4 Pack 10 Oz. Double Wall Stainless Steel Insulated Tumblers in Matte Gray is a set of four tumblers designed for both hot and cold beverages. Made of durable stainless steel, these tumblers can keep drinks cold for up to 24 hours and hot for up to 12 hours. The sleek matte gray color and insulated design make them perfect for both indoor and outdoor use. With a sporty theme and a focus on both cold and hot drinks, these tumblers are ideal for both men and women looking for a high-quality and versatile beverage storage solution.