This Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker is a must-have for any car or truck owner. It is a 3oz. pack of 4 that is perfect for use in automotive tools and supplies. The gasket maker is designed to create a strong and durable seal in sensors and is safe to use with high-temperature applications. The product is manufactured by Permatex, a well-known brand in the automotive industry, and has a package quantity of 4. Its unique formula is perfect for use in fluids and chemicals, gasket makers, removers, and sealers. With this product, you can be sure that your sensors are properly sealed and safe to use.