Can be frozen.
It is semi-transparent so you can see the contents at a glance and it has markings.
Simply press the center to close. Model number: Rectangular 300
Capacity (mL): 300
Size (mm): 80 x 156 x 53
Quantity: 2 pieces
Material: PP (polypropylene)
RoHS2 (EU)2015/863 compliant [About RoHS]
