These microwave molds turn out hot yummy cakes in a flash. Great for molding ice cream too. Have your mug cake, and eat something pretty too! Works with all mug cake mixes and the many quick, easy, delicious mug cake and microwave-brownie recipes online. For MUG CAKE fans. Based on the Heritage, Jubilee, Bavaria, and Original Bundt® designs from Nordicware, these microwave molds turn out hot yummy cakes in a flash. Great for molding ice cream too. Have your mug cake, and eat something pretty too! Works with all mug cake mixes and the many quick, easy, delicious mug cake and microwave-brownie recipes online. Material: BPA-free and Melamine Free Plastic, High-Heat Plastic