Tomcat Rodent Block Expanding Foam Barrier fills gaps and cracks to keep mice from coming inside your home | Spray this rodent barrier in crevices inside and outside your house, including the garage, attic, basement, and foundation | Expanding foam provides a long-lasting, airtight and water-resistant bond to most building materials | This spray-on sealant is specially formulated to block mice | The foam can be trimmed, sanded, and painted