Feature:1.highest quality build and design2.Silicone material.BPA Free and reusable.3.Can be used in microwave or refrigerators.Keep food fresh.4.Strong adsorption,leak-proof. Details:Material:SiliconeColor:White,Pink,Green,Blue,YellowSize:6.5cm,9.5cm,10.5cm,14.5cm,16.5cm,20cm1pcs or 6pcs Can be stretched to suit a variety of different sizes.