Diameter: roughly 3.5x3.5x1.5 inches Handmade with Love Each piece in my shop is completely designed, handmade, finished, and packaged, by me in my studio in Southern California. You can be sure every single piece of art is made with equal love and care. How are they made? My hearts are made of porcelain clay. I love this clay because of its smooth texture. All of my pieces are hand-made and fired twice in the kiln. Once to dry out the clay at 1800° F and to set the glaze at 2000°F. These hearts are thin and delicate. The hearts after being fired, are sanded to ensure they're smooth on the bottom. Due to the handmade nature, our ceramics may have small differences, but I love these as they show how the makers' hands have formed and finished each product. To retain its ravishing good looks I recommend washing by hand!