Product Review

Notes:
1. Double-check whether the lid placement is right each time. Each lid is precisely measured to match the container for optimal sealing and storage. Accurate placement also makes it easier to snap the lid closed.
2. It's normal that your brand-new container seems hard to close the first few times. If you feel like they're tough to snap shut, please simply give some time for them. After several times of using, they will be fine.
3. Please kindly check that whether the rubber gaskets are sitting properly in the lid grooves. If they come out, you might experience difficulty closing your containers.

Material
Our high borosilicate glass are made of silicon dioxide, diboron trioxide, aluminium trioxide and other natural material which makes it can withstand a higher temperature (750℉) and higher extreme temperature change (248℉) than other tempered and soda-lime glass that made of silica, soda ash and limestone which was cheap, low cost and tend to crack when heating even in a low temperature.

Multi-functional

No more staining from red sauce, misshaping from microwave usage with Zestkit glass food storage containers!

1. - Prepare more meals in advance and freeze them for the busy days when you won't have time to cook.
- Microwave them to enjoy a delicious hot meal.
- Clean them hassle free in the dishwasher!
2. Control your daily intake when dieting or for 21 day fix
3. Storage left overs or snacks
4. Taking food out for camping, hiking, picnic or work
5. Best gifts for wedding, business, parents and children
6. Nest rectangular / square ones or lid inside each other for saving space when not in use

Package contents
Square Containers: 2 x 1.3 cup (10.8 oz) , 2 x 2.1 cup (17.5 oz) , 2 x 3.3 cup (27 oz)
Rectangular Container: 1 x 1.5 cup (12.5 oz) ,1 x 2.6 cup (21.6 oz) ,1 x 4.3 cup (35.1 oz), 1 x 6.3 cup (51.3 oz)