Youth Big Barrel Bats, also known as Senior Youth Bats, are baseball bats with a "big barrel", meaning these USSSA Approved Bats have either a 2 5/8 inch or 2 3/4 inch diameter barrel. Depending on the rules of your baseball organization, Big Barrel Bats are typically used between the ages of 6 years old and 13 years old. By far the most popular length to weight ratio is Minus 10 Ounces, but Minus 9 and Minus 5 bats are popular as well, depending on the strength, size, and skill level of the batter. Check out our Big Barrel Bat Reviews and the best selection of Closeout Bats for sale online!