Portable Base Swing Arm Overhead Fall Arrest Track System provides fall protection that is ideal for tight, narrow spaces. This system provides 360-degree mobile protection for locations indoors or outdoors. Depending on the system size, the portable base weighs between 2,000 and 10,000 pounds. Larger systems may require up to three stackable portable bases. Moveable by forklift, the standard system weights are between 2,500 and 29,000 pounds.