Farnam Just One Bite EX Bait Station, 3-Unit Just one bite EX 3-unit bait station is effective against anti-coagulant resistant house mice Each disposable bait station is preloaded with a 1/2-ounce block of just one bite ex mouse bait Moisture-resistant mouse bait contains bromethalin Features "Stop Feed Action", rodents cease feeding after consuming a toxic dose Measures 2-inch length by 6-inch width by 9-1/2-inch height