i purchased this product from the sportsman's guide and have tremendous success with it. the first bag i hung still has minerals in it after 1 year with an impressive hole under the bag. i would highly recommend using this product. also, if you use this be sure to hang it high enough that the deer can't reach when they stand on their hind legs as my bro-in-law didn't and they ripped it open. just wanted to throw this out for all!