4PCS 20 * 24 Inch Foam Bag For Shipping, Expanding Foam for Instant Pack Quick Expanding Packaging Bags, Packing, Mailing and Shipping Solutions

Just followed directions popped each section and tapped till it popped and spread foam in bag and it filled up inside of pc perfectly and it arrived at destination with no damage at all

Perfect project for forming to odd shaped items and provided the protection required! These were awesome!

This is such a wicked cool shipment item for not just product resellers, but anyone who needs to ship fragile mail. I just wish the price were much lower. I got the 8 pack, but that still comes out to a whopping $3.25 each. When you use one for the bottom half and one for the top, that’s $7 spent already protecting one item or so. They do, however, perform exactly as described. I mean, I personally wouldn’t ship a crystal wine glass by itself surrounded in this, but definitely candles and other similar fragile items.How it works is there’s a gel like substance in the area labeled “A” and another in “B. Once you lay out the designated foam bag and have your box and item to ship ready to go, put your item on top of the foam bag and start to push A & B to combine the substances. Mold every part to where you want the foam inside the bag to garden and then place it into your shipping container. Allow it time to expand a little and harden to form to your item and box perfectly. Voila!

I am writing about the 40# version. Following the instructions on the package yielded only about an inch of foam in the bag, which is insufficient to provide the padding needed. I expected at least 3" in the bag prior to embedding the item into it.Follow-up. After seeing this review, the seller offered a full refund.Thank you

Isn't easy finding a 20x24 pack.Did a good job keeping my computer nice and secure in box.Lost a couple packs in shipment, but I bought more than enough.

This is a great way to protect things, if the price is right.Pros -When not activated the packs are really smallAllow you to protect the top and bottom of an entire itemCustom fits to your boxProtects things really wellCons -The price is a little tough, you need two per shipment, so you need to be willing to spend three twenty-five x 2 to protect one item.Since you only get 8 in one pack or 4 in the smaller, you may be worried about following the instructions well enough on the first try.Overall this is a great way to protect something important, but it's a little too pricey for every day shipping of lower end items. If 6.50 is worth protecting your item I think this would be a great fit.

WHAT’S INCLUDED:8 Expanding Foam BagsPRODUCT/THOUGHTS:These kinds of mailers are really neat if you’ve never used them. You basically pop two sections together and then that causes a chemical reaction to create the foam. This works great for things that are fragile like you see in the product images. Glass, Electronics..etc. All of that. Especially PC parts, which I tend to sell from time to time, so these kinds of foam bags are really important for me. They are not that big before you use them, so they don’t take up much space while you have them stored away.These guys worked just fine for me. They were very simple to use. I didn’t have any faulty packs like some others did. That's very unfortunate for them. But as long as they arrive properly, you won’t have any issues. I think the cost could go down a little bit in my opinion, but other than that I Can Recommend it.

It came packaged with no issues. I know some have said that a couple had already activated when they got them but mine are all still packaged and ready to go. I have a couple of really big delicate props that I am shipping and this is an excellent option to help protect them and keep them from moving around in the box. It conforms to the shape of the item and fills the dead space keeping things from shifting.I honestly never knew this was something you could buy commercially until recently and now I can't live without them.