Our famous Geode Crackle coasters are made by a skilled group of artisans at our studio in Minneapolis, Minnesota. These square ceramic coasters are handmade, one of a kind, and variation should be expected. Orders of 4 of the same color will be sent in arrangements that compliment each other as sets. Each coaster is one of a kind and unique, but we will happily group similar coaster Each coaster measures approximately 4" x 4" and has felt feet attached to the underside to protect tabletop surfaces. Square Coasters, Pottery, and Specialty Shapes have different lead times. If your order contains a combination of these products they will be shipped together when the order is fully complete. If you would like your items to be shipped separately based on their different lead times, we suggest placing separate orders for Square Coasters, Pottery, and Specialty Shapes.