Cozy up with your new best friend with this officially licensed Portal 2 Companion Cube Mug! Let this double walled ceramic collectible mug assist you in drinking all your favorite beverages. Perfect for every Portal fan, the Companion Cube Mug holds up to 8 ounces of liquid. Hand wash only. Not dishwasher safe. "The Vital Apparatus Vent will deliver a Weighted Companion Cube in three, two, one."