Pfaltzgraff Plymouth Covered Butter Dish Each package contains one butter dish with lid. The dish is made of chip-resistant stoneware. The dish includes a cover to keep butter or margarine fresh longer. This piece is part of the Pfaltzgraff Plymouth collection, featuring sculpted and embossed vegetables, fruits, and acorns adorning a creamy white background. This butter dish is completely dishwasher safe for easy cleanup.