Food-grade silicone: The raw material of imported food-grade silicone, it is soft, texture, tear-resistant and has a good feeling of the hand. It has excellent wear resistance, is natural and harmless, non-toxic, odorless, non-corrosive It conforms to the norms food standard to protect the environment.High quality premium: are made of high quality food grade silicone, reusable and do not deform or flee. The silicone lid can withstand high and low temperature, the use of the temperature range - 40 ~ + 230 , can be used to make the electric refrigerator, oven, microwave and oven Multi size: You have 6 different sizes: normal diameters are 6.5 cm, 9.5 cm, 11.5 cm, 14.5 cm, 16.5 cm and 20.5 cm, extendable to 8.9 cm, 12.7 cm 1/4 ", 6", 8 ", 9" and 11 "approx. Suitable for most shapes and materials. Lid adjustable practices and reusable: perfect for stretching to adapt to all shapes and sizes, bowls, cups, mugs, and other vessels, whether they are round, square or rectangular tubes. Washable with water, reusable. Function: a good water column keeps the food frais. Food in the potluck, stackable in the dip bowl, drinks, not finished or the remains of fruit and vegetables. Material: food-safe silicone Dimensions: normal diameter are 6.5 cm, 9.5 cm, 11.5 cm, 14.5 cm, 16.5 cm and 20.5 cm Microwave: can be used under 230 Fridge: can be used over -40 Avoid bad odors and keep food airborne. Use the airtight silicone lid to improve the shelf life of food and replace the foils, expensive and bad for the environment. Washable, these pull-out lids can be reused many times in the infinite. Package scope of delivery: 6 pieces pull-out silicone lids