The Easton Quantum BBCOR Baseball Bat BB22QUAN is a 31-inch, 28-ounce aluminum bat designed for adult players. It features a 2 5/8 inch barrel diameter, balanced swing weight, and is BBCOR certified for use in high school and adult baseball leagues. The sleek grey and blue color scheme and updated 2022 model make this bat a standout choice for serious baseball players looking to enhance their performance on the field.