- Flame control slots: The ventilation pattern concentrates heat to the bottom of the cookware, keeping heat centralized, reducing waste, and improving cooking consistency and speed. - Cast iron strength: Durable heat treated iron ring provides solid performance against heat and wear, delivering a long service life and reliable durability even with repeated use. - Secured handle teeth: Ribbed rim locks cookware securely; compatible with woks, frying pans, and pots; prevents slipping or wobbling during stirring. - Instant setup: Simple drop-on design with no installation steps; place on your rack and start cooking right away. Use scenarios - On a gas or electric cooktop, place under a wok or skillet to focus flame to the bottom, improving heat transfer for faster stir-frying with even results. - Under sauce pots or small to medium pots to promote even simmering and reduce scorching of sauces or braises. - In busy kitchens or for quick meal prep, no tools or assembly required; drop onto the rack and begin cooking immediately.