The design and performance of the Ketch-All® has earned it the title of "The World's Best Mousetrap." The Ketch-All® is a live mouse trap that operates without the use of harmful chemicals, making it safe to use around children and pets. It is efficient, often capturing several mice in one setting! The Ketch-All® is a large mousetrap that has been winning the war against rodents since 1924. It works 24 hours a day, every day of the year. By following the simple operating procedures, your Ketch-All® will provide years of proven, practical performance.