Demeyere 8016 RESTO Stainless Steel Asparagus/Pasta Cooker Set, 4.7-Quart, Silver Cook asparagus, vegetable and pasta with ease Made of 18/10 stainless steel Unique Silvinox surface treatment improves the resistance of stainless steel preventing discoloration, tarnishing and dulling due to handling, and contact with aggressive detergents and certain foods. Silvinox is also easy to clean. Can be used for all types of hobs, gas, electric and induction; Dishwasher resistant .30 year warranty against defects