JT Eaton formulates these Bait Blocks for maximum effect against rats and mice. This product contains Diphacinone, an anti-coagulant and first-generation rodenticide. Each 9-pound pail contains 144 blocks.These blocks combine apple flavoring and other natural ingredients. This combination makes these blocks extremely palatable to Norway rats, roof rats, and house mice. Place these bait blocks in tamper-resistant bait stations to protect from non-target mammals, pets, and children. Use above-ground either outdoors or indoors. For maximum effect, remove other food sources. Replace spoiled or contaminated bait immediately.Rat control: Apply 4 to 16 blocks per placement. Space placements at 15 to 30-foot intervals. Maintain a fresh supply of bait for at least 10 days or until signs of rat activity decrease.Mouse control: Apply 1 block per placement. Space placements at 8 to 10-foot intervals. Maintain a fresh supply of bait for at least 15 days or until signs of mouse activity decrease.** Always read instructions and follow proper safety guidelines. In case of accidental ingestion give Vitamin K1 intramuscularly or orally. **