These one of a kind card holders are cut from rocks. The rocks are cleaned, cut and finished with a coat of clear acrylic. Felt dots are placed on the bottom so that they won’t scratch furniture. These are great for displaying a new card from a child, a favorite card or picture, a recipe, or even a business card or two. No two are the same! Some may be cut from the same rock as matching bookends. Sizes and colors vary.