A bat has an elongate tubular striking member of a first material, and an elongate handle member of a second material. The handle may be of composite material laid up in selected layers and orientation to produce selected weight distribution, strength, and stiffness and improved batting capabilities. The striking member and handle member may have juncture sections which are substantially rigidly interconnected through mating configurations.

An extendable bat has a covering member, a tubular core, a handle, an adjusting device, a cap, and a collar. The adjusting device has a first locking member and a second locking member. With the cooperation of the first locking member and the second locking member, the length of the bat can be adjusted and the handle is held in place at a desired length. Accordingly, the cost for manufacturing the extendable bat is lowered.

A bat has an elongate tubular striking member of a first material, and an elongate handle member of a second material. The handle may be of composite material laid up in selected layers and orientation to produce selected weight distribution, strength, and stiffness and improved batting capabilities. The striking member and handle member may have juncture sections which are substantially rigidly interconnected through mating configurations.

A ball bat includes a handle portion, a tubular core, a middle device and a striking portion. The handle portion is made of plastics or wooden materials and has a front end, a rear end and a body between them. The tubular core is made of fiber reinforced plastic materials or metal and is embedded in the body of the handle portion. The striking portion is made of fiber reinforced plastic materials or metal and has a front end, a rear end and a body between them. The middle device has a predetermined weight and elasticity and is positioned between the front end of the handle portion and the rear end of the striking portion such that the handle portion and the striking portion can be connected to be a whole bat.

A bat having interchangeable sections comprising a handle section and a hollow striking section. The handle section includes a first end and a second end, while the hollow striking section includes a tapered portion and a barrel portion. The second end of the handle section is removably attached within the tapered portion. Additionally, the barrel portion includes a length having a mid-point wherein the second end of the handle section terminates before the midpoint of the length of the barrel portion.