After cutting and cooking the ingredients, just close the lid. The knob is easy to turn and has a non-up-and-down structure. The lid opens and closes easily with a one-touch lock. A pressing plate to firmly press down vegetables. The transparent container allows you to check the pickling progress from the outside. The flat top of the lid allows for neat storage inside the refrigerator. Material: Container/lid: Polystyrene, Knob/shaft/pressing plate: Polypropylene, Hook: AS resin, Spring: Stainless steel Weight (g): 382 Capacity (L): 1.6 Dimensions (Width x Depth x Height) (mm): 170 x 155 x 140 Heat resistance (C): Resin/80, Polystyrene/70, Polypropylene/120, AS resin Cold resistance (C): Resin/-20, Polystyrene/-20, Polypropylene/-20, AS resin Shipping fee is 660 yen, so no price reduction is possible.