Pullmaster offers several models equipped with emergency freefall, controlled freefall and a combination emergency/controlled freefall function. Model PL5 Free Fall 4,500 lbs2,041 kg Model M18 Free Fall 18,000 lbs8,165 kg Model M25 Free Fall 25,000 lbs11,340 kg Model M30 Free Fall 25,000 lbs11,340 kg Model M50 Free Fall 50,000 lbs22,680 kg