This 3 piece steamer set is constructed of premium grade 18/10 stainless steel, providing better protection against rust or acid corrosion and incredible durability. The sandwich base is heavyweight finish with a 6mm thick aluminium layer for maximum heat distribution and no hotspots. The pan features a 360° stepped non-drip pouring rim which helps prevent liquids boiling over. The stay cool handles with built-in lid rests help keep stove and counter tops clean. The pan also features an internal water level indicator for easy capacity measurement. The 6mm thick aluminium sandwich base provides excellent heat distribution, retention and no hot spots. The pan is suitable for all hob types including induction. Dimensions: Upper: H16 x W21.6 x D28.5cm Middle: H11 x W21.6 x D28.6cm Lower: H12 x W21.6 x D28.5cm Getting the most from your induction pans All of our John Lewis induction pans are tested to the British and European standards for safety and performance. To ensure the functionality of induction pans, it is important to make sure the magnetic circuit with the hob isn't broken by: Making sure the size of the pan base is no smaller than the hob ‘ring' Using pans with a flat base Not lifting the pan off the hob top continuously Giving coated and aluminium pans with steel bases more time to heat, as the aluminium sides do not heat directly from the hob