Talon Wax Blocks can be used where there are signs of rodent activity, like along dark walls, rafters and In dark sheltered areas. Mice require several feeding locations not more than 3m apart. Rats require large quantities of bait placed in 1 or 2 locations, not more than 9m apart. For effective control continue to bait until feeding ceases. Most rodent deaths occur 4 to 7 days after consumption of bait, but deaths may occur for up to 2 weeks.