Time Release BLOCK!...your simple solution to keep a site active for a full season. Place one or two blocks in an established Deer co-Cain or other mineral site... to provide months of attraction without having to return to the site. When using the Deer co-Cain Block to establish a new site, place one or two blocks in the middle of a bare spot... 4 feet in diameter. Please note: Rainfall will be needed to activate the site, allowing the minerals to fully leach into the ground. Once this happens, deer will begin to consume the soil and the beneficial minerals.For instant results use in combination with Deer co-Cain Mix or Deer co-Cain Liquid.