Awesome it's cheap and works
By: Bryan Thompson from Arnold, MD, USA
Your general opinion of this product.
Product works perfectly. couldn't get much easier, pour in distilled water, screw on the cap and insert between strings and soundhole. It probably won't help much if you don't store your guitar in a case. check every 7 - 10 days and add more water. Now if only recording the guitar was as easy, one can dream.