1.Silicone Stretch Lids Set: you will get 30 pieces of reusable silicone stretch lids in 5 colors, each color has 6 sizes, a nice combination and rich amount that can meet your use and replacement requirement easily 2.Need to Stay Dry: remember to keep the silicone bowl covers dry before use, otherwise they will be easy to slip off; Stretch the silicone lid to cover the container, and then the nice flexibility can create an airtight vacuum seal on the container to keep the food fresh, but note that excessive stretching can cause slip or even tear 3.Use with Confidence: the silicone food covers are made of quality silicone, no bad smell, can attach to food directly, heat resistant from 4-40 degrees Celsius/ 40-450 Fahrenheit degrees, for refrigerators, microwave ovens and dishwashers 4.Reliable and Reusable: the reusable silicone lids are flexible and tear resistant, durable and stretchable, long lasting material ensure you to use for a long time, you can use with confidence