This Russell Hobbs Universal Lid cleverly adjusts to fit saucepans with 16, 18, and 20 cm diameters for multifunctional use. Using the same lid for multiple pans offers a space-saving solution,ideal for smaller homes apartments,students,and caravans. With an adjustable, heat-resistant silicone rim that securely fits your pans to lock in heat for more efficient cooking. The lid has a steam vent and is made out of durable tempered glass so you can watch your cooking without releasing heat. For comfort while cooking, the lid has a soft-touch silicone knob that stays cool during use for a safe and secure grip.