Beer Mug Set of Two, 20oz Made of High Quality Acrylic - Acrylic is known for its High Level of Clarity and Scratch Resistance. Scratch and Impact Resistant - Acrylic has a much higher scratch resistance than other plastics such as Polycarbonate. It also possesses a higher level of Clarity than polycarbonate. Perfect for Beer, Soda, and many other beverages! Great for Parties, Outdoors or Around the Pool! Top-rack Dishwasher Safe. A BPA Free Product.