Multi Purpose & Sapce saving Lid: Ydeapi universal lid is specially designed to perfectly fit most pots and pans with diameter 7" to 12". A must-have cookware in your kitchen. Just use two lid to cover your pots, pans, skillets, fry pans, saucepans, stock pots and woks, so you can keep your kitchen tidy and no longer cluttered. High Quality Glass & Food Grade Silicone: Ydeapi pot lid is made of premium tempered glass and food grade silicone. Safer, stronger than normal glass and no metal rusting. The silicone outer ring and anti-slip knob are heat-resistant up to 450 F.