Products sold and shipped by Amazon.co.jp are genuine Japanese products The authentic products are sold in Japan that comply with inspection standards Vacuum seal requires a dedicated Zwilling vacuum sealer Product Size (W x D x H): 7.2 x 4.4 x 3.9 inches (182 x 112 Capacity: 30.4 fl oz (900 ml); Maximum storage capacity 25.4 fl oz (75 Material: Heat resistant glass (main body) ABS resin (lid) Silicone rubber (gasket) Country of Origin: China; Heat resistant temperature: 456°F (280°C) (main body) / Cold resistant temperature: -46°F (18°C) (main unit); Microwave used: Main unit only (excluding lid) / Freezer safe; Dishwasher safe; Main unit only (excluding lid)