An apparatus for restraining an object in a vehicle may have an elongated frame, a clamp member mounted to the frame at or near one end thereof, and an elongated base member movably mounted to the frame between the clamp member and an opposite end of the frame. The base member may include a curved portion having a support surface defining a curvature and a linear portion between the curved portion and the clamp member. The base member may be movable relative to the frame to an object transition position in which a free end of the linear portion extends outwardly away from the frame and the curved portion retracts upwardly toward the clamp member along a path defined by the curvature to allow the object to be received between, and removed from between, the clamp member and the support surface of the base member.