EASTON ADV 360 hardball bat, ULTRALITE specification for lightweight design. - Brand: EASTON - Model Name: ADV 360 - Intended Use: Hardball - Standards: USA BASEBALL - Weight: ULTRALITE - Size: 74cm - Mass: 560g Used for about six months from the fall of 3rd grade to the spring of 4th grade in the minor league. It is lightweight among hardball bats and easy for younger children to swing. Please check for scratches and scuffs before purchasing.