New Wilton Heart Linzer Cookie Cutter Set. The set includes one main heart-shaped cutter and 6 interchangeable smaller center shapes that let the filling show through the top cookie. The cutters are made of metal. Ideal for making traditional jam-filled Linzer cookies, but can also be used for brownies, biscuits, and sandwiches. Craft charming heart cookies with Wilton's set. Perfect for parties. B20