✅ SIMPLE NON-STICK DESIGN: Our flexible ice trays are made of grade silicone. 100% BPA Free, Non-Toxic, Food grade, Leak-free, Microwave safe, Oven safe, Dishwasher safe. Please pay attention that you should add water to the ice mold which came with funnel, then cover the lid, not add water from the small hole on the lid. ✅ DURABLE TO USE AND CLEAN: Easy to fill, and sturdy enough that can be used through a wide temperature range from -40℃ to 230℃. The silicone ice molds are easy to fill directly and pop out easily from the ice cubes molds thr