Material: insulated fence made of fiberglass epoxy resin, aging resistance, after waterproof treatment can enhance its moisture resistance, the safety fence colorful and Side Pulleys: easy to move, 45 ° tilt convenient drag, pulleys are made of nylon material, moving time-saving and labor-saving Snap Design: scaling freely, easy to store, prevents opening when not in use, contraction to reduce the floor space Details: screws tightly fixed, stable performance, can be retracted at will, easy to operate, warning conspicuous, two-color warning Applicable Scene:Power company maintenance, elevator repair, construction road isolation, temporary closure of parking space, etc.