Six Over-pressure Safety Systems?? include pressure?? safety fuse?? alarm and etc. automatic over pressure release. Automatic Safety Device for Opening and Closing</br>Cooks Super Faster?? Saves Time and Energy?? Easy Operation.Helper handle for ease of handling. Easy to clean.</br>Heavy duty?? Made of durable?? rust resist professional quality Stainless Steel. long lasting</br>Retains food's nutrients and flavor.</br>8 Year warrantee on usage.  Hight: 6 Inches; Replacement gasket model number: R1101.</br></br>Product Description</br></br>Inner DIA: 20 cm. This magic super quality pressure cooker cooks 3 to 10 times faster then ordinary methods. It has six Over-pressure Safety Systems. The food retains its nutrients and flavor. Tenderizes beef?? pork?? chicken?? fish?? or vegetables faster than you can in a microwave?? without losing moisture.</br><br/>http://www.amazon.com/gp/product/B01BI6OP1O