dCon, Refillable Mice Bait Station, With 4 Refills, With Gen 1 Anticoagulant, Reusable Bait Station With 2 Entry Locations For Mice Placement In Corners, Child & Pet Tamper Resistant, Active Ingredient Diphacinone Formulated To Encourage Repetitive Feeding, Meets California Department Of Pesticide Regulation Rulemaking. Size W/12.