The Berryman Products B-12 Chemtool Carburetor 0116 Automotive Additive comes in a pack of 4 units, each containing 15oz of the fuel treatment solution. Made in the United States, this product is designed to enhance fuel economy and is commonly used in automotive maintenance. With dimensions of 2.63 x 2.63 x 7.75 inches, this carburetor additive is ideal for improving the performance of vehicles by cleaning and optimizing fuel systems.