Hawkins Classic 3.5 Liter Pressure Cooker with Easy Quarter-turn Open & Close Lid; Made from commercially pure, virgin aluminum; Mirror polished; interior and base matt finish; Features a goof-proof lid that seals from the inside like a jetliner door, ensuring greater safety; Inside fitting lid opens only when pressure falls; Stay cool handles; Pressure is regulated automatically to optimum levels for speed cooking; lasting gasket