Material：The glass cover is made of tempered glass, which is wear-resistant, smooth surface. Good airtightness, internal circulation of nutrients, cooking with less water, retaining the nutrients in the food Complete sizes; made of tempered glass, with the advantages of drop resistance, explosion-proof, durability and high transparency Suitable for soup pot, big wok, flat wok, pan and so on. Ideal solution for sealing in the aromas and flavours for your favourite dish This pan lid features for maximum strength . It's more than durable enough to meet the demands of daily cooking in your kitchen