Learn More rntttt Used in a wide variety of rigging applications, this small, strong connection point is machined from high-strength aluminum bar stock. Its rounded inner surface minimizes rope bend and allows smooth movement of the rope. n xc2xa0 n Working-At-Height / Industrial Rope Access / Technical Rope Rescue nWorking at height requires reliable, quality equipment. The Aluminum O-Ring 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.