Mouse Killer Grain Bait (Sachets 5) - Rentokil PSM21, Rentokil Mouse Killer Grain Bait is a ready-to-use bait for use in a tamper resistant bait station. Kills in a single feed. For indoor and outdoor use, in and around buildings. Available in packs of 5 or 10, enough for most infestations. Contains Brodifacoum. Made in the UK. How to Use: Follow the full instructions before use. Simply place bait inside a lockable bait station (available from Rentokil) and position in areas where mice or rats have been seen. Exclude ALL pets and children during use and remove all baits before allowing them back into the treatment area. Where to Use: Anywhere that rodents have been seen, for mice commonly in cupboards, behind furniture, under floorboards and in lofts, garages and sheds. For rats, commonly in sheds, garages, under decking or near compost heaps.5 x Sachets of Rentokil Mouse Killer Grain Bait. Kills up to 10 mice or 4 rats. Rentokil PSM21 Mouse Killer Grain Bait (Sachets 5)