Our rat and mouse weatherproof blocks are ready to use bait to be used in tamper resistant bait stations for the control of rats and mice in and around buildings. These moisture-resistant high palatability bait blocks stay fresh in damp or wet weather. Read and follow the product information as well as any information accompanying the product or provided at the point of sale before using it Warning: Keep away from children and pets. This product contains an anticoagulant substance. If ingested, symptoms, which may be delayed, may include nosebleed and bleeding gums. In severe cases, there may be bruising and blood present in the faeces or urine. Antidote: Vitamin K1 administered by medical/veterinary personnel only.