Global Lift Corporation C450DIAPK Pool Lift with Tri-Point Drop-In Anchor System and Port Kit; 450 lbs Capacity offers a portable capability system - the commercial series lifts can be purchased as a stationary lift and can be made into a fully portable unit with the addition of a portable kit at any time. The new Anti-Pinch linkage system holds the seat in a level position with an external linkage system that virtually eliminates pinch points. Key lock-out system is designed to lock the system out with the turn of a key when the unit is not in or intended to be in use. Emergency return system is designed to connect the power source directly to the actuator in the event the handset and or controls malfunction. It will safely return the stranded user to the up position and out of the water.