Abstract: A mold includes a core in which a molded product is formed, the core comprises a cored body and a sliding core on the core body, separable from the core body in a first direction with respect to the core body, and an ejector to press the sliding core in the first direction to separate the molded product formed in the core from the core. The ejector includes a driver positioned below the core and movable toward a lower surface of the core in the first direction or away from the lower surface of the core in a direction opposite to the first direction, and a rod movable in the first direction to press the sliding core to be separated from the driver or movable in the direction opposite to the first direction to couple the sliding core with the driver, and the rod is movable further in the first direction than the driver.