US Weight chain is produced in the USA using "state of the art" manufacturing and premium materials. The result is chain with a brighter, more consistent color that lasts longer. Our SunShield UV protection package is the industry leader. Made from DOW chemical's high-density polyethylene (HDPE) gives US Weight chain superior strength and finish. HDPE is durable, safe and resistant to many common chemicals. The 2" link size makes for an effective visual barrier.