Husqvarna PoleSaw Harness Balance Flex Support Harness #596280001 #578449901, #505204301 OEM Original Equipment Manufacturer. Fits all kind of pole products and is attached to the machine by open hooks, making it easy to use and quick to start/stop. The Balance Flex Harness even the load distribution over both shoulders due to the padded shoulder straps, which is a support when using the product in different angles and heights. A lifting force is used to help hold and lift the product. The harness gives good support when using pole products for different kind of work, high or low, far away or close, which results in better ergonomics. Includes padded shoulders and back plates. Harness is orange and gray. Includes instructional pictures.