D'Addario GH Acoustic Guitar Humidifier - 2 Pack

Will no longer store my acoustic guitars without these in the winter when there is little, to no humidity. Almost ruined my vintage dreadnaughts without this product.

this sponge is better in here because of the holes in it it absorbes water fast and easy where as other products dont

have had one of these for years....you just have to keep an eye on the moisture, as they'll go dry .when you forget about them. most simple solution i've found for keeping guitars humidified.

In my opinion these work as good as the pro model. I have both types and these seem to work just as good.

Haven't used them yet, but I like the fact that they don't touch the wooden guitar body like some other humidifiers do.

Very simple to use but you'll be re-moistening the sponge (which is rather small) pretty frequently during the cold months when your overall house/apartment humidity level is low.