About Fu Kitchen Round Glass Lunch Box: 

Round glass lunch box With 4 Locks Firmly Airtight Silicone Gasket 480ml

Rounded corner design makes cleaning easy

Tempered glass material，seal freshness, leakproof lid, transparent, safe for health

Dimensions :10.5cm x 4.8cm

Cold And Heat Resistant

• Borosillicate glass with stable properlies.
• Can be used in the microwave
• High temperature resistance 400'c, low temperature -20'c.
• Whether it is microwave reheating or freezing in freezer
• It is very suitable and good sealing can also play a role in refreshness preservation

User manual:

• Should be washed with soap before first use
• Open the lid when using in the microwave
• Avoid strong impact, do not use brush or iron tuft to scrub
• Do not heat directly on fire