Silent Dry Renewable Small Gun Safe Dehumidifier Block, Rechargeable Portable Moisture Absorber for Gun Accessories, Closet, Cabinet, Camera, Gym Bag, up to 5L, 4 Pieces, Invisible

I was thinking it was one small block, as the add never really said it was 4 smaller blocks, (Not that that was a problem I was even happier that it was 4 smaller blocks, I am putting 2 in my pistol case and one each in my ammo cans. Put them in the oven 5 minutes ago. For 50 min.and after cool down they are going in my case.They are supposed to be heated in an oven or microwave for a specified time, and temperature.Do dry them out. It says every 30 days depending on humidity, you need to dry them out every 30 days, depending on humidity. I do like them and am planning on buying more.

1st time using this product. It’s nice and compact and can easily fit in your gun case. The stone seemed dry out of the package but I threw it in the microwave to charge it anyway. I was surprised at how much moisture came out of it. It seems like it works as advertised. I put one in my pistol case and threw the other three in my shotgun case. I’ll update later after I recharge the stones in a month.

I have over 13 different ammo cans that I keep in my garage. I found these to be more resilient than anything I’ve tried before. However, my only problem is that there’s no indicator that tells you when it needs to be dried out. So you just have to put them in the oven every 30 days but depending on where u live… u may not even need that. Overall my ammo has been ok so I can only imagine that it’s working fine.

I was looking for a decent dehumidifier to maintain my cameras/lenses and ensure they work properly. I never saw this kind of mini portable dehumidifier before, so I was full of doubt when I purchased this. After a week of testing, I have to admit that it is surprisingly effective. It's affordable and a great choice for any camera owner for it is safe and easy to use compared to any other electric dehumidifier. Works just right and fits your needs. Helps inhibit corrosion or mold.

These are really nifty little dehumidifiers. But I cannot tell if they actually work. I blew one up in the microwave (following the directions carefully). Thankfully it didn't harm the microwave any but obviously I am down to 3 now and have no idea he w to tell when to run them through the microwave.One picture shows what happened to the one that blew up. The other picture is to show their actual size. Pretty handy to fit into small backs such as a camera case. I can fit all of these in my case, into different compartments.Would give 5 stars if I had any idea how to tell when to run it through the dehumidifier.

Highly recommended this dehumidifier. Just put one piece into the pistol case, then it starts dehumidifying. Cool concept and is a nice way to dehumidify my pistol case. I have followed the instruction that reheats it after 30 days. Works well so far, will recommend this to my friends in the gun club!

Works as advertised. Did my own small scale test, absorbed all moisture as advertised. Definitely recommend for small safes or cabinets.

I put these in my large 22 gun safe along with one in my camera equipment. These are small yet seem to be effective. I like that they can be recharged as well. The directions are small in print but easy to follow. Each one comes individually wrapped and it is suggested to charge/dry it out before use.