CMI ROPEJACK spike ascender it features a double locking

it features a double locking steel snap with swivel for secure

What is the difference between the RockD Orca and the RockD Autolock

reducing fatigue during long days of climbing

Lightweight aluminum construction

CMI ROPEJACK spike ascender it features a double lockingA Mechanical Advantage tool for pre tensioning static lines, light lifting and cabling. Small and light enough to carry aloft by a climber for Mechanical Advantage within the crown. Mechanical Advantage is approximately 5: 1. No pulleys, no extra rope, minimum weight, minimum friction, quick, easy on off, works well 'topside', too. Designed to be used by only one individual using one hand only, the length of the handle on the Rope Jack limits