Marble is a saucepan set from Salter. The set consists of stainless steel, aluminium and ceramic. Because it is dishwasher safe, you don't need to wash it by hand.
From Amazon
Salter BW02986G 3 Piece Pan Set, Non-Stick Induction Hob Suitable With 16/18/20 cm Saucepans With Lids, Tough Forged Aluminium Kitchen Cooking Pots, Dishwasher Safe, Marblestone Collection, Grey
Robert Dyas
Salter Marblestone 3Pc Pan Set Grey