WHERE TO USE: Use these mouse and rat bait blocks indoors or outdoors; if applied where children, pets, and non-target animals may have access, bait blocks must be placed inside tamper-resistant bait stations RODENT BAIT BLOCKS FOR PROFESSIONAL APPLICATORS: Tomcat with Bromethalin Bait Chunx are bait blocks for agricultural use and professional applicators that kill rats and mice CONTAINS 1 OZ. BAIT BLOCKS: This 4.25 lb. pail of Tomcat with Bromethalin Bait Chunx is filled with 1 oz. rat and mouse bait blocks for use with bait stations (sold separately) or as indicated per label directions KILLS MICE AND RATS: Norway rats, roof rats, and house mice cease feeding after consuming a toxic dose; each block kills up to 12 mice (based on no-choice laboratory testing) FOR USE WITH BAIT STATIONS: Bait stations are mandatory for outdoor, above ground use; bait must be applied within 100 feet of man-made structures