A golf exercise device is disclosed that can be used for stretching the shoulder and back muscles. The device expands to a length that allows the user to place the device behind the user's head and grasp each end with the user's hands. The device collapses to a size small enough to easily fit into a golf bag. The center portion of the device is padded for comfort while the user is stretching. Clips can also be included to secure the device to the external portion of the golf bag. The device can hold golf balls in one end, and a net for retrieving golf balls from water hazards in the other. Zippered pockets can be attached to the device to hold personal items such as mobile phones, PDA's, sunglasses, car keys, or the like. Net-type bags with drawstring closures can also be included with the device.