This Set of Mugs with Flip Top Lids, by Design for Living, are ideal for the office, outdoors, in the gym or at home. Constructed of high density poly propylene reusable plastic, which is very durable and will not retain odors or tastes. Each mug comes with a secure flip-top lid and thermo plastic rubber sleeve, preventing spills and keeping your beverage hot or cold longer. The wide mouth design provides easy cleaning and can fit everyday sized ice cubes. Fits most car cup holders. BPA-free. Set of 2 Mugs with Flip-Top Lids, each holds 16 ounces.