Pack of 6 Reuseable Silicon Stretch Seal lid

Made of healthy ,food grade non-toxic silicone material,not easily to damage or deform,durable for long time use.It can keep food fresh for long time,different sizes fit most of bowls.Very good elasticity,can be stretched 2 times than the original size.Resistant?to heat up to 230℃,?can put it in boiling water to wash,also it is cold resistant which can be used under-40℃.Can be used in refrigerators,microwave or ovens,easy to clean and it is reusable.