Siliconezone SZ07KS-10710AA Heart Muffin Cups (Set of 6), Red Measure  6.9 x 1.2 x 3.3 FDA approved silicone Oven, microwave and freezer safe -58 to 482 F Non-stick: prevents food from sticking during cooking or baking Perfect for your festive celebrations set of 6, 3 red, 3 pink