Safety Health: Reusable Silicone Lids Are Food Grade Silicone, Durable, Soft Texture, withstand -30-230 C Temperature, No Worry About Silicone Stretch Lids. Can Even Be Used In The Oven and In The Refrigerator with Excellent Wear Resistance. 6 Silicone Lids In Different Sizes: The Biorook Set Includes 6 Transparent Silicone Lids In Different Sizes. Thanks to Their Stretchable Material, Food Lids Easily Fit Most Bowls, Jars, Containers, Mugs, Cups, Cans, Jars, and You Can Even Use Them to Cover Your Melon or Watermelon. Premium Quality Perfect Closure: Not All Food and Bowl Stretch Silicone Lids Are The Same, Our Covers Use A Premium Material and Have Thicker Grooves On The Edges Providing Maximum Waterproofness. TheyRe Smooth, tough, and Stretchy Enough to Snuggle Up to Oddly Shaped Containers to Prevent Spills While Keeping Food Fresh. Eco-Friendly and Eco-Friendly: Stretch Silicone Lids Will Reduce Your Costs. Plastic Waste and Will Help You Save Money, As You Will No Longer Need to Buy Cellophane to Cover Your Fresh Food Scraps. Besides, The Bowl Cover Does Much Better to Keep Your Food Fresh. Satisfaction Guaranteed: We Are Committed to Providing Customers with Superior Quality Products and A Comfortable Customer Experience. If You Have Any Problem with That Set of Silicone Stretch Lids You Purchased, Please Let Us Know and WeLl Do Our Best to Get It Right.