"Ease of use" leads to sustainability Compared to plastic products, which are prone to chipping and cracking over time, silicon has excellent durability and can be used for a long time. As a result, there is no need to replace them frequently, and the amount of waste can be reduced, contributing to a sustainable environment. 1. Heating in an oven or microwave oven is OK Silicone is heat-resistant and can handle temperatures up to 210°C, so it can be heated in an oven or microwave. In addition, it is BPA-free, so you don't have to worry about harmful substances transferring to the food even if you heat it, so it's safe and secure! 2. Excellent durability and can be frozen Silicone is highly durable and resistant to low temperatures, so it can be stored in the freezer as is. Because it is a soft material, it will not crack or deform even if it is thawed, and it can be used for a long time. The sealed lid prevents the contents from leaking, preventing frost and freezer burn! 3. With dividers, easy to wash The rectangular 850ml has a partition, so it is recommended for lunch boxes with many side dishes, and when you want to put various ingredients such as fruits and vegetables together. Since there is no need for disposable portioned cups, it also reduces waste. The whole thing can be washed in the dishwasher, so troublesome hand washing is easy. It can also be boiled and cleaned, so it can be used hygienically. 4. Leak-proof sealed lid Even if it is turned upside down, the contents do not spill easily and have excellent sealing, so you can carry juicy food.