Souper Cubes half cup tray is a patent pending silicone freezer tray that was designed by a husband and wife team to make it easy to freeze sauce, juice, salsa, and even deserts in measured portions so that its effortless and convenient to enjoy single servings or use for recipes. Each compartment has fill lines that make it easy to freeze 1/2 cup, 1/4 cup, 125 milliliters, or 50 milliliters of food. A steel reinforced rim allows you to handle tray with confidence as you transport it to the freezer. DO NOT use in the microwave. Individually segmented compartments allow for easy removal of the frozen cubes. The snug fitting lid keeps freezer odors out and allows for easy stacking. Lids are interchangeable with the 1 Cup Souper Cubes tray and 2 Cup Souper Cubes tray. Souper Cubes is made from 100% FDA food-grade silicone, is BPA-free, is dishwasher safe, and is oven safe up to 415 deg F. Souper Cubes freezer trays are designed by Souper Products LLC in California and made in China.