Each Hawkins Instaa features an inside-fitting lid. This design is inherently safer than conventional cookers. Thus Hawkins Instaa pressure cooker is pressure-locked for safety – like a jetliner door! It has a 4.06 mm new improved induction base and a superior pressure regulating system that controls pressure to a narrower, more efficient range, reduces sprouting of frothy foods (such as dal) and is easier to insert and remove. The safety valve is located under the lid handle bar so that when it operates the steam is safely deflected downwards. The food-grade gasket has minimum exposure to steam inside the cooker, does not rub every time the product is opened and closed – so lasts longer. Stay-cool handles. Fixed sturdy pivot does not put pressure on the plastic handles as it is a part of the metal handle itself. Thus handles last longer. 'Play' or movement designed in the Lid Handle for perfect sealing & leak-free pressure cooking. Recommended for use on gas, electric, halogen, ceramic and induction cooktops.