Fungo sticks usually made of wood, sometimes composite, but very rarely of aluminum. Created by Louisville Slugger. Fungo are long, light poles used by trainers. They are designed for training to build players precision. They help teach the player control and accuracy. They are usually 34 to 37 inches long. However, they weigh between 17 and 24 ounces. The characteristic diameter of the barrel is 2 1/4 inches.