Packed with Safety Features: Cook with confidencethanks to the locking lid that ensures proper closure and a clearly visible pressure indicator. Cook With Confidence: The lid's locking indicator changes to green and makes an audible sound when the pressure cooker is sealed and ready for the stove. Premium German-Made Cookware: Fissler's chef-quality cookware is made with the finest durable materials so your cooking experience is safe, easy, and healthy.