Does it freeze as a hard solid? Or instead is it pliable when freshly frozen?

Thank you for your question. Our Gel Blox freezes into a solid "brick" of gel. However, our Therma-Kool Hot Cold Gel Packs (used for first aid & therapy) are soft and flexible when frozen. - Nortech Labs Inc

Can you use them for international travel or are they TSA approved?

I used these for medication for a trip overseas and had no issue. I did a double bag; meds and gel ice in smaller bag and smaller bag in larger bag with gel ice. It worked fairly well. I contacted a pharmacy at first airport and they had another ice pack ready for rest of my trip. Complicated but my meds arrived safely. Tip: take med bag out of carry on in separate bin at TSA. They will want to look at it.

Could it fit into a 4"x4.5"x1/2" tray?

Thank you for your question. Since it turns into a solid brick of gel, it may be too large to fit into a tray of that size. However, we do carry a 3 oz Gel Blox Cold Shipping Pack that is 3.5" x 4".

For how many hours do these keep things cold?

We took a cooler to St. John USVI and the entire trip from home to villa was a good 15 hours and when we arrived and unpacked the cooler they were still frozen. They worked great!

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Cold Shipping Packs, 6 oz: 4" x 5" - 6/Case

Product ID: 13960789

Details

Age Range (Description)
Adult
Brand
Gel Blox
Number of Items
6
Special Feature
Reusable
Unit Count
6 Count

📦Compact 4x5 inch size fits perfectly in coolers & packages

♻️Reusable design reduces waste and saves money

❄️Non-toxic food-grade gel keeps items cold safely

328 Lei

Duties & taxes included

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Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

❄️ Chill smarter, ship safer — stay cool without compromise!

LONG LASTING CHILL - Stays cold for days under optimal conditions—perfect for extended trips
VERSATILE USE CASES - Ideal for pharmaceuticals, vaccines, meats, and outdoor adventures
COMPACT CONVENIENT - Slim 4" x 5" size fits seamlessly into any cooler or shipping box
ECO FRIENDLY REUSABLE - Latex-free packs you can freeze and reuse again and again
SAFE NON TOXIC COOLING - Food-grade gel polymer ensures zero hazards during transport

Gel Blox Cold Shipping Packs are 6 oz, 4" x 5" reusable gel packs made from non-toxic, food-grade polymer designed for safe, long-lasting cold transport of pharmaceuticals, vaccines, meats, and perishables. They eliminate hazardous shipping fees, are latex-free, and perfect for both professional shipping and outdoor use.

Specifications

ASIN	B00EFB4X1C
ASIN	B00EFB4X1C
Additional Features	Reusable
Age Range Description	Adult
Brand Name	Gel Blox
Color	White
Container Type	Pack
Customer Reviews	4.0 4.0 out of 5 stars (11)
Date First Available	August 9, 2013
Item Form	gel
Item model number	GB456
Manufacturer	Nortech Labs
Manufacturer	Nortech Labs
Manufacturer Part Number	GB456
Material Type	Gel
Model Number	GB456
Number of Items	6
Package Dimensions	10 x 6.46 x 4.72 inches; 2.31 pounds
Size	4W x 5H
Unit Count	6 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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328 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Romania.

Secure transaction

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