iO Ratshot Blocks BLUE are ready to use baits deadly to mice & rats indoors and out. For the control of Brown or Norway Rates and mice, including those resistant to other anti-coagulants. iO Ratshot Blue employs the active ingredient of Difenacoum, delivering significant advantages to customers in a number of ways including relatively low amounts of bait needed to Kill Rats & Mice. Now the product of choice for customers who need effective control with reduced Risk. Science based formulation. Dose Rates & Administration Instructions: For use in damp or dry situations, in and around buildings, including industrial, commercial, agricultural, public services and domestic structures. It also reduces the risk for secondary poisoning for dogs, cats, birds, native animals, livestock. A 25g mouse will only require 0.4g bait to succumb to the effects whereas a 250g rat will only require 9.0g of bait. Active Constituent: 0.05 g/kg Difenacoum.