Micro Traxion PulleyHigh efficiency lightweight progress capture pulley MICRO TRAXION is a compact and lightweight progress capture pulley (85 g) designed for crevasse rescue, hauling, and self rescue, and for use as an emergency ascender. The cam can be locked in the open position so the device can be used as a simple pulley. Sealed ball bearings provide excellent efficiency (91 %). Tech Specs Weight: 85 g Certification(s): CE EN 567, UIAA Min. rope diameter: 8 mm Max.