①-④ The items from Senshukai are made of sturdy 18-8 stainless steel. As they have been stored for a long time, even unused items may show some clouding of the metal. ⑤ Purchased from Daiso, appears to be stainless steel, but the material is unknown. ⑥ I have forgotten where I purchased it and how many times I used it. The material appears to be aluminum, but it is unknown. ① Unused, 17.5cm diameter cake pan, Senshukai ② Unused, Heart-shaped cake pan, Senshukai ③ Unused, 16cm diameter cake cooler, Senshukai ④ Used, 19cm diameter flour sifter, Senshukai ⑤ Used, Heart-shaped chocolate mold, Daiso ⑥ Used, 19cm diameter cake pan with a bottom plate, unknown