Lucky Buck Mineral supplements the deer population s diet with minerals that not only make them healthier, but also help develop bigger, better racks! Lucky Buck Mineral is developed with just the right ratios of minerals that deer love, mixed with an ingredient that will limit the amount they want to eat. For best results, Lucky Buck Mineral should be used year-round. It is easy to use---just dump it on a stump, log or even on the ground. Stock up to avoid running out.