JUNDUN File Box, Fireproof File Organizer Box with Lid,Collapsible Hanging File Box with Handle,Portable Safe Storage Box for Office Home, Letter Size Legal Folder，Silver

Its hard to actually review something without knowing how they work. That being said, I don't want to find out if they do. After getting by since Christmas without them I figured I should do the right thing and be safe.They are larger than you think and will easily fit 2 hard case lipos inside. I stuffed them with wadded up newspaper to get the shape to 'set in' since they come flattened in an envelope. Now I keep 2 batteries in each one all the time unless they are in a RC car.It was a good price and they seem up to the task.

Great bags with good durable Velcro. The material quality of these bags is really nice also, good solid feel compared to some of the other bags I've seen for sale. I have 4 of these lipo safe bags and will buy more when I need them.

Since I really needed four of these safe bags and the DerBlue and Nioposi ones were almost exactly the same price I bought two of each so I could compare. They're very similar and I give them both 5 stars. As you can see from the pictures the Nioposi tends to have a more rounded top, but both are flexible and shape can conform to the contents. If I need some more I might get the DerBlue ones because I like the way they naturally take on a more square shape.I highly recommend using bags like this for storing and charging your batteries.

This product is great. Perfect size and I can store/travel with 2 or 3 batteries in it with no problem. Bags are well made.

These are the perfect size for my 4 cell lipos. Seem to be good quality.

Perfect fit for my RC Lipo batteries while storing and/or charging.

Great pair of lipo bags. The Velcro closure is very strong. Bags feel well made

Compact, cheap, and works well. Great for transporting a few lipos.