Christmas Eggnog Moose Mug Gift Boxed Set of 4 - Safer Than Glass Safer than glass, light weight, glass-like, crystal clear acrylic. 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. 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. Individually packaged in a holiday gift box. Dishwasher safe. Can be used by ALL family members, young and old.