I used this a few times and then stored it away without using it. There are a few water spots on the plastic parts. The box is not included. This is a dashi pot that allows you to easily make dashi in the microwave. The large strainer, which reaches the bottom of the pot, allows you to extract dashi thoroughly. You can hook the recessed part of the strainer on the rim of the pot to extract every last drop. The wide mouth makes it easy to wash and keep hygienic. It comes with an original recipe and instruction manual. ■Material: Body: Heat-resistant glass (temperature difference resistance 120°C), Lid, strainer, frame: Polypropylene, Mesh part: Nylon ■Size: Capacity approx. 600ml, Height 13.0cm ■Specifications: Microwave safe ■Country of origin: Japan