Adjustable Angle of Trapeze Arm: 0°, 45°, 90°, 135°, 180°. Adjustable Length of Trapeze Arm: 18-30cm/7.08-11.81in. 1 Bed Trapeze Bar. It can be used to exercise the patient's upper limbs, provide support when lifting and adjusting the patient's position on the bed, and transfer the patient from the bed to a wheelchair or other seats.