Christmas Eggnog Moose Mugs - Gift Boxed Set of 2 - Safer Than Glass Safer than glass, light weight, glass-like. Made of FDA approved break-resistant lightweight BPA free crystal clear acrylic which is superior to plastic with the added benefits of being a stronger and safer alternative to glass. These are the ONLY ONE PIECE moose mugs on the market with 8 ounce capacity. All others have glued on antler ears and are much smaller in size and capacity. Dishwasher safe. Individually packaged in a holiday gift box. Can be used by ALL family members, young and old.