DITRAC All Weather BLOX Rodenticide contains the powerful active ingredient, brodifacoum. DITRAC is effective in controlling both rats and mice but works especially well to clean out persistent mouse infestations. DITRAC All Weather BLOX Rodenticide, with its distinctive cog-like shape, is made with more than 16 high-quality, inert ingredients for proven palatability. This highly weatherable block bait easily fits in tight baiting places. A hole in the center of this 20g BLOX lets PMPs place it on bait securing rods in Bell’s tamper-resistant bait stations, or nail or wire it in place.