The Cen-Tech 5 In 1 Stud Sensor is a compact and efficient tool that allows you to accurately detect studs in your walls with its built-in LED light. This stud finder is made of durable plastic and is designed with a 5-inch length for easy handling. Manufactured in China by Centech, this product is brand new and sealed in its package, ensuring that you are getting a high-quality and reliable tool for your home improvement projects.