Buckingham Induction Stainless Steel 3 Tier Steamer Set Casserole Pan with Glass Lid 18 cm ... Premium Quality High quality Buckingham stainless steel extra deep Three Three Steamer Set including a tempered glass lid with a steam air vent. The hollow handles are riveted 'stay cool' stainless steel and the glass lid knob is with a silicon insert to keep knob cool to hold. Thick Gauge Stainless steel and aluminium is 3.2 mm encapsulated base to give an even heat distribution. This casserole dish is Oven & dishwasher safe unto 240 C.