We are not the same: You're Waiting for Your Hogwarts Letter, I'm Waiting for My Squid Game Invite The mug is BPA and Lead-free, microwave & dishwasher-safe, and made of white, durable ceramic in an 11-ounce size. Printed on both sides, this makes the perfect gift for coffee, tea, and chocolate lovers.n.: White ceramicn.: 11 oz (0.33 l)n.: Rounded cornersn.: C-handlen.: Lead and BPA-free