A sturdy framework made from rectangular Cold Rolled Close Seamless (CRCS) tubes, mounted on 12.5 cm diameter swiveling castors—two with brakes for secure positioning. The top is composed of an 8-gauge perforated Cold Rolled Close Annealed (CRCA) sheet divided into four sections. Four manually operated, separate actuators control the backrest and knee rest via a hand crank system, allowing smooth and precise adjustments.
