NEWBEA 12 Pack Silicone Stretch Lids, BPA-Free Silicone Food Covers, Reusable, Durable and Expandable to Fit Various Size and Shape of Containers,Microwave & Dishwasher Safe;

Features:
✦1. These handy covers are made from super-stretchy silicone.
✦2. They are circular in shape but pliable enough to seal even odd-shaped containers.
✦3. The tops are made from bpa-free, food-grade plastic.
✦4. They are microwave and dishwasher-safe.
✦5. They are also heat-resistant to 450 f, so reheating foods is never a problem.
✦6. Save on expensive, disposable plastic wrap, and save money on food bills by storing scrumptious leftovers for another meal.

Flexible Size:
❤2.8"(will stretch to 3.5")
❤3.7"(will stretch to 5")
❤4.5"(will stretch to 6")
❤5.7"(will stretch to 8")
❤6.5"(will stretch to 9")
❤8.3"(will stretch to 11")

How to use it?
❤1.Place half of the lids over one edge of the container.Start on the side closet to your body.
❤2.Stretch the other half of the lid away from you,inching your way around the bowl.
❤3.Stretch,then press the top of the lid while pulling the tabs to create a vacuum seal.
❤4.Pull the sides to ensure a perfect fit.

Notice:
❤Sturdy stretch lids is made of high quality silicone, can be used for a long time. Heat resistance from 40 ℉（freezing) up to 400 ℉. Safe for Oven or Fridge.

Warming tips:
❤1.Lids are completely dry or they will not stay in place.
❤2.When you are using it in Microwave or Oven,do not completely seal container would be better.
Because the expanding heat and pressure from container, may result in damage or injury.