【Unique knob design】: Turn the knob to the date of the day when you put the food in, so that you don't miss the expiration date. The knob marks the storage date so as not to miss the best tasting period.
【Food Grade Silicone】: Unlike plastic lids, these silicone lids are crafted from premium silicone material. They can handle temperatures ranging from -104℉ to 446℉ (-40℃ to 230℃), making them safe for use in the freezer and microwave.
【Easy to clean】: Our Silicone lids are dishwasher safe and freezer safe. Our silicone material is reusable, not easily damaged, Good flexibility and more durable than plastic.
【100% Fit Replacement Cover】: Storage cover lid for 7210-PC Pyrex rectangle storage dish 3-Cup/ glass bowl/ storage containers. BPA free.
【Fully Leak Proof Design】: They will tight fit reduces leakage, provide a secure seal to keep your food airtight to lock in freshness.