The patented locking mechanism in our updated CSR2 Pulley is easy to release under load, creating much greater efficiency with the lowering and raising necessary to a confined space rescue. The machined aluminum swivels at both ends of the system eliminate any potential twisting of the lines. This system is also an excellent choice for confined space entry or rope access work where a heavy-duty pulley system is desired. Systems are UL Classified to NFPA 1983 (2012 ED) - General Use. System includes: 1/2" (12.5 mm) Static-Pro Lifeline, Red (1 x 200') or 7/16" (11 mm) Static-Pro Lifeline, Blue (1 x 200') CSR2 Pulley CSR2 Double Pulley ProSeries Aluminum Manual-Lock Carabiner (2) #3 Rope Bag, Red Working-At-Height / Industrial Rope Access / Technical Rope Rescue Working at height requires reliable, quality equipment. The CSR2 Pulley System can be used with confidence in work-at-height maneuvers for industrial rope access or technical rope rescue when used in accordance with the regulatory safety standards it falls under. Always use life safety equipment and gear according to the regulatory safety standards for which it is classified and/or certified. Work Safety The CMC Rescue School offers training classes for work-at-height rope access and rope rescue. Some courses may include instruction about proper use of the CSR2 Pulley System or similar systems used in rope rigging. CMC Rescue School provides training with course work in technical rescue, tower rescue, fire rescue, confined space rescue & entry, trench rescue, emergency building shoring (EBS), rope access, rope rigging as well as custom contract rope rescue and industrial rope access courses offering class work for the specific needs in the above disciplines or in search and rescue (SAR), urban search and rescue (USAR), helicopter air operations (heli-ops, helo-ops), swiftwater rescue and tactical maneuvers.