7 Stretch Lids - Reusable Replacement Container Lids to replace Cling Wrap! - Microwave Safe - Freezer Safe - Dishwasher Safe, Extra Strength! LIFETIME GUARANTEE = 100% satisfaction guaranteed, can be use for a lifetime because of its durability. Our goal is to satisfy the needs of our customer and we assured you that this product is the best or you can send it back. Anytime. OVEN & MICROWAVE SAFE=no worries because our lids are safe to use in your oven or microwave up to 450 degrees Fahrenheit. ECO FRIENDLY=perfect replacement for Saran Wrap because the materials are biodegradable unlike Saran Wrap which is not. Since it is reusable no need to use/buy plastic wrap, aluminum foil or wax paper everyday. Perfect way to save money, time and our environment. KEEP YOUR MICROWAVE CLEAN=because it has an air tight technology it prevents food inside the container from spilling thus it makes it easier to clean. FITS TO ALL SIZES=this lids are perfect for different sizes of containers that you may use because of its stretch ability factor. Use it on your round, small, medium and even large size container.