The Cooks Standard 4 Cup Nonstick Hard Anodized Egg Poacher Pan with Lid, 8-Inch has an anodized surface that is durable, heats evenly, and prevents hot spots. Nonstick makes food release/cleaning easy and allows for healthy cooking. 4 cups are made of hard anodized aluminum and hold 60 ml each. Tempered glass lid with steam vent makes viewing food easy. Stainless steel handle is riveted for strength and stays cool. To use: fill pan with water, put eggs in cups, and cook to desired firmness. Not Induction compatible. Works on: gas, electric, glass, halogen, ceramic, etc. Oven safe to 350F. Dishwasher safe.