Thickness 3mm or 2MM

The width of the actual size (i.e., the inner diameter) is 2 cm less than the actual size. When purchasing, please pay attention to the size and recommend buying larger.

Seaming is achieved by high-temperature pressing and melting the polyethylene to achieve the seam, The expansion and contraction error of the heat will be within 1cm in the inner diameter.It is not recommended to pull and support strongly.

For cooling preservation: Use in conjunction with more than two ice packs, and the refrigeration time can be extended to 24-36 hours (Note: The food must be refrigerated first, and the time for cooling preservation is related to the surrounding temperature and the method of use).

For insulation: The insulation time is generally 2-5 hours (it is recommended to use stainless steel containers and wrap them with cloth to extend the insulation time depending on the surrounding temperature).

However, when storing high-temperature items, please ensure to wrap them with a cloth to prevent the items from scorching the interior. It is also suitable for winter insulation requirements. 

Attention: Due to the buyer's mistake in specifying the size, the return and exchange fees, as well as the return shipping costs, will all be borne by the buyer. We will not be responsible for the return shipping costs.。

Additional tax points will be added to the invoice, please consult the customer service for more details!

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