Maximum Speed and Adrenaline Heavy Duty Trolley with Stainless Steel Sheaves delivers an exhilarating experience for enthusiasts seeking maximum speed and adrenaline rush. Built to Last: Equipped with steel side plates and dual stainless steel sealed ball bearings, this zipline pulley ensures durability and long-lasting performance for all ages. Stability and Speed: The Z-MAX design provides stability and astonishing speed, while the split-open bottom makes cable setup a breeze with closure secured by locking a tether on the bottom anchor point. Versatile Attachment Points: Enjoy peace of mind with 4 generous attachment points for backup tethers, ensuring a safe and secure adventure every time. Rope-Friendly and High Efficiency: Compatible with ropes ranging from 9mm to 13mm cables ranging from 8mm to 12mm in size, this pulley's high efficiency of 90 M/S and 45 KN MBS make it the ideal choice for your thrilling ziplining experience. CE EN12278 Certified for added safety.