Impress your guests with this sophisticated salt and pepper set. part of the element collection of coordinating mugs, bowls, and serve ware from Danica Heirloom. Material content: stoneware with reactive glaze/cork stoppers. Care instructions: hand washes only. The nature and beauty of reactive glaze is that each piece is unique. There may be slight variations in color, texture, and finish to each perfectly imperfect item.