Thank you for viewing! Includes an outer case that can store 8 containers! Heat resistant to 140 degrees Celsius and cold resistant to -20 degrees Celsius, allowing for microwave use, freezer storage, chemical disinfection, and microwave disinfection! * Please be sure to remove the lids when using the microwave, as they may burst. The outer case is not microwave safe. ● Product size (mm): Outer case / 115 x 245 x height 55, Inner container / 54 x 54 x height 48 ● Container capacity: 100ml x 8 ● Materials: Container (body) / Polypropylene (heat resistant 140 degrees Celsius, cold resistant -20 degrees Celsius), Container (lid) / Outer case / Polypropylene (heat resistant 100 degrees Celsius, cold resistant -20 degrees Celsius) ● Made in Japan