Rolled edge: With a 1.5mm aluminium bottom rolled edge. Cookware: Get a three-piece three-tier steamer set. Thickness: Features 0.5mm thickness. Mirror polishing: Complete with a mirror polishing. Set includes: two 18cm steamers and an 18cm casserole pot with a lid. Material: Made from high quality stainless steel. | 3-Piece Stainless Steel Steamer Set | Wowcher