The ZLP Goliath Trolley is our preferred choice for commercial use that can accommodate up to 3/4″ cable and speeds in excess of 100 mph. The ZLP Goliath is made of stainless steel side plates and features hardened 2″ stainless wheels. Each wheel is equipped with two ball bearings giving it a faster, smoother, cooler ride. This helps ensure peak performance and extended life. The bottom of the trolley has an open design making the installation/removal of it as easy as clipping/unclipping a carabiner. For added safety the Goliath trolley can be used with a safety backup lanyard by attaching a 3rd carabiner to the top of the trolley.