The iO 10kg Ratshot Rapid Kill Rodent Bait Blocks in red contain 0.05 g/kg of the active ingredient brodifacoum. These ready-to-use blocks are designed for indoor and outdoor use in damp or dry environments, including industrial, commercial, agricultural, public service, and domestic settings. Formulated for single-feed rodent control, they are effective against both rats and mice. The bait blocks are weatherproof and suitable for use around buildings where high rodent populations are present.