The Bar's Leaks Engine Oil Stop Leak Concentrate by Rislone is a compact and powerful solution to seal engine leaks and prevent smoke. Made by Bar's Products in the USA, this liquid concentrate comes in a 11-ounce container. With its gray color and easy application, this product is perfect for home use in the kitchen, dining, or bar areas. It effectively repairs engine seals and ensures smooth operation, making it a must-have for any DIY enthusiast or car maintenance expert.