Get ready to look fly and festive in the Kendra Scott Bat Drop Earrings. With their classic oval shape and a playful bat shape, these earrings are a spooky season must-have-and an easy way to add a little bit of fun to any ensemble. Metal Type: Plated brass. Gem Type: Obsidian. Stone Creation Method: Synthetic. Stone Treatment Method: Impregnated. Push back closure.