Swiss Diamond Induction Nonstick Wok with Lid - 11" Model #61128ic: 3.7 L (3.9 QT) / 28 cm (11") Patented nonstick coating reinforced with real diamond crystals (PFOA-free) Suitable for gas, electric and induction cooktops Made in Switzerland; Cast aluminum; Oven-safe up to 500 degrees F See-through tempered glass lid with knob that doubles as a steam vent