DeMarini WTDXDSB00-11 Distance Adult Baseball Bat (-3 BESR) - New for 2011! Drop (Weight-to-Length Ratio): -3--"Drop" is a weight-to-length ratio of a bat. Certain drops are required or limited for use in different leagues. Bat Material: dX1 Alloy--Combines a high yield strength with fracture toughness for a balance of strength and durability. Bat Grip: Hybrid Performance Grip-- Model Number: DXDSB00-11 Barrel Size: 2 5/8"