environmentally-friendly,non-toxic,durable and leakproof,air tight seal to prevents spills and food fresh longer.All the lids is stretchable easily to fit different shape and size containers,flexible for whether round,square,rectangle,or fit bowls,dishes,pot,mugs,cups,and jars.Great saver cover for keeping fruit,vegetables,meat and other foods fresh,no leakage even with liquid.And it freezer safe,heat-resistant,suit for dishwasher,oven,microwaveThe saver covers wrap can be reusable and easy to clean,can also serve as replacement for lost lids.There are lots of handy tabs all around the lids,making them easy to remove from container.are fit in different containers,enough and convenient for home use in daily life.Tabs all around the lids make it easy to remove without tearing or warping.The silicone storage cover with smooth surface,these lids are easy to be cleaned by hand or dishwasher.versatile design and stretchable material allows these lids to stretch to any shape and still provide an airtight seal.These lids are Perfect for storing leftovers,taking dishes,unfinished drinks or any leftover fruits and vegetables.colour: Blue + transparentMaterial: Siliconesize: 6 * diameters are approximately: 6.5cm 9.5cm 11.5cm 14.5cm 16.5cm 20.5cmPackage Contents: 12 * Stretch LidsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.