do you want to really turn those deer on??? try dumping a bag or two of watersoftener salt nuggets into a depression rain water lays in often thruout the year or on top of the mud in a swampy area...after they are hitting it good go to a feed store and buy a 50# bag of red trace mineral (loose not in the solid block) costs only a few dollars and add that into the hole...do this every 4-5 months and you'll have the best mineral lick you can get