Norpro Stoneware Butter Dish/crock Keeps Fresh 4" Keeps Butter Fresh For Up To 30 Days Without Refrigeration. Holds; 1 Cube of Butter Hand Washing Recommended Available In Marble; Porcelian Or Stoneware. Select The Material In The Menu Near The Top of The Listing! Product Description Never Tear Up Your Toast Again With Hard Butter Using Norpro`s Butter Keeper. Butter Keepers Use Water To Seal Out Air; Keeping Butter Soft; Sweet And Fresh For Up To 30 Days; Without Refrigeration. The Stonewa