The Kuhn Rikon Duromatic Top 3.5-Quart Pressure Cooker features an automated lid-locking system and safety release back-up system to give you ultimate peace of mind. The spring-loaded pressure release valve is a large knob marked with easily visible red lines so cooks can see at a glance whether the correct pressure has been reached. When it's time to release pressure, just turn the knob to indicators for slow or quick release of steam. There is no need to hold down the release valve by hand. You see the exact pressure and know exactly when to start and stop cooking. So, there is no danger of overcooking and no noisy steam escapes. It's blissfully quiet. Cook healthy delicious meals in minutes, not hours. Easy to use with its interior fill lines, automatic locking system, and precision spring-loaded pressure release valve. A stainless steel steaming trivet is included. Cooking with a Duromatic Pressure Cooker not only saves an incredible amount of time, it produces exquisitely delicious food. Vitamins are sealed in, instead of boiled away, vegetables keep their bright colors and flavors are so intense less seasoning is needed. While you are saving time you are also saving money and natural resources. Using a Duromatic Pressure Cooker also conserves energy. The Kuhn Rikon Duromatic 3.5-quart is a great, all-around pressure cooker for small families, it cooks dinner for 3 to 5 people. Included is Quick Cuisine Cookbook, a $14.00 value - free.