The fungo is used by a coach to hit balls for defense practice. It is lighter weight, so less fatiguing to hit ball after ball. The fungo sheds its weight above the hands. The severely tapered barrel to drops weight and maintains a high moment of inertia. While the bat would be at greater risk of breaking if used in a live batting exercise, it is safe to use in practice because there are much fewer mis-hits.
No, we're not talking about The Masters. We're talking about fungo golf, baseball's wonderful adaptation of frisbee golf. For those of you unfamiliar with the rules, the general goal is to hit predetermined objects or other landmarks located somewhere on a baseball field with a ball. Instead of a golf club, you use a fungo bat. All normal scoring rules of golf still apply.
Also called a baseball cup, box, athletic cup - made of hard impact-resistant plastic or light metal, often with flexible sides for comfort and protection, designed to protect the testicles and groin from impact of a baseball, baseball bat, cleats, or any other moving object. Absolutely required for catchers, pitchers, and often all infielders. Many leagues require all male players to wear jockstrap and cup for practices and games.
Fungo bats are, simply put, a long, skinny, and lightweight baseball bat used for fielding practice. Typically, they are around 34 to 37 inches in length and between 17 and 24 ounces in weight, give or take a couple of ounces. They will also almost always feature a 2 1/4 inch barrel diameter to allow for more control during a swing. As you can tell, fungo bats are longer than a normal baseball bat and much more lightweight in comparison. Most fungo bats are going to be made up of ash wood while there are some maple and bamboo wood fungo bats, some composite wood fungo bats, and very few aluminum alloy fungo bats. Almost all of these designs will be under $100 with very few eclipsing that mark. 
For starters, we should clarify just what we’re talking about when we say fungo bat. Longer, lighter and thinner than a regulation bat (but a larger barrel), a fungo bat is typically 35 to 37 inches long, and weighs between 17 and 22 ounces. As David Allison wrote in the June 1978 edition of Country Journal, “A fungo bat looks to be a cross between a baseball bat and a broomstick.”