The cookware is made of 304 double-bottomed stainless steel; The material is robustness and resistance against wear and tear or corrosion, and conducts heat speedly. Large pot size 7.8*4.9IN,middle pot size 6.2*3.8IN, Colander size 7*3.7IN,Fry pan size 7.8*1.9IN.You can select the size of the cookware based on the tribe size of your travel, ensuring convenient meals; This set for 4 to 6 people.