This is a handmade tofu mold made of polypropylene (passed the standards test based on the Food Sanitation Act). It was used twice and then stored at home, so it's in almost new condition. Heat resistance: 120 degrees Celsius Cold resistance: -20 degrees Celsius Size: Outer dimensions 11.2 x 17 x 6.5 cm Inner dimensions 9.5 x 14 x 6.5 cm Thank you very much! (^o^)