P53 Micro Traxion Pulley Ultra-compact, high-efficiency progress capture pulley. The MICRO TRAXION is an ultra-light (85g / 3oz), ultra-compact progress-capture pulley that is exceptionally efficient (91 %) thanks to its sealed ball bearings. The cam can be locked in open position so the device can be used as a simple pulley. Upper button unlocks the cam to enable progress capture. Features: Ultra-light and ultra-compact progress capture pulley Aluminum sheave mounted on sealed ball bearings provide excellent efficiency (91 %) Versatile: Toothed cam with self-cleaning slot optimizes performance under any conditions: frozen or dirty ropes... Cam can be locked in open position so device can be used as a simple pulley. For use on 8 - 11 mm diameter ropes Rope installation diagrams engraved inside pulley Designed for crevasse rescue, hauling, self-rescue and as an emergency ascender Technical Features: Min. rope diameter: 8 mm  /  0.31 in Max. rope diameter: 11 mm  / 0.43 in Sheave type: sealed ball bearings Sheave diameter: 25 mm  /  1 in Working load: 2 x 2.5 = 5 kN Breaking strength: 2 x 7,5 = 15 kN Working load as progress capture pulley: 2.5 kN Breaking strength as progress capture pulley: 4 kN Efficiency: 91 % Material(s): aluminum, steel, stainless steel, nylon Weight: 85 g  /  3oz Reference: P53 Certification(s): CE EN 567, EAC, UIAA