Play together is a swing that enhances interaction between parents and children, letting them swing together. It cleverly utilizes the principle of bevel gear transmission and bearing-assisted rotation. Tightening the switch (push the middle bevel gear up) allows two independent swings to move in opposite directions at the same time with the same amplitude. Parents can drive their child while swinging. Loosen the switch (pull the middle bevel gear down) to restore the swing to a stand-alone state. With Play together, parents can swing with their child, increasing the emotional connection between the two.