I would have to rate this pressure cooker as on of the more disappointing purchases through Amazon. The price is cheap for what turned out to be a cheaply made cooker.  I would rather pay much more for a cooker with a thicker layer of stainless and more secure handles. The lower handle design depends on one screw - it doesn't work. I am finding that it loosens too easily. I don't want to continually tighten screws on my cookware.