● The upper dish grid silicone seal design has strong leak-proof performance, and the lower lunch box has no leak-proof design and only has the function of heat preservation. ● Made of food-grade PP, non-toxic, tasteless, healthy, and safe. ● Food-grade PP outer layer, heat resistance up to 120 degrees C, steaming food safety will not produce plasticizers. ● Main body heat preservation efficiency is up to 3 hours, room temperature is 30 degrees C, (100 degrees C hot soup → 40 degrees C). ● Multi-purpose use can be used for work, school, non-staple food, mountain climbing, outings, camping, visiting doctors. ● Double-layer design inside and outside, sturdy and durable, not cracked or hot. ● Four sides lock design for better fixing effect. Double locks with food-grade silicone, thickened sealing ring, soup ingredients do not leak. ● The lunch box has a layered design, and the ingredients are placed separately without odor. ◆ Note: Manual measurement Unit: cm Due to different measurement methods, an error of 1-3CM is allowed. The error range is not a quality problem! Due to different lighting reasons and monitors, it may be different from the color, please refer to the real thing!