Trango Alpine Aider 12 kN. Three reinforced steps that fit securely into the attached stashbag and can be clipped directly onto your gearloop. The grab-handle can be inverted for a fourth step and the bottom step has a bungee for ascending convenience. Specifications for Trango Alpine Aider: Manufacturer: Trango Color: Black Fabric/Material: Nylon Dyneema mix Weight: 2.9 oz Breaking Strength: 12 kN Features of Trango Alpine Aider: Packs into a convenient attached pouch Superlight for mainly free climbing with the occasional aid move Package Contents: Trango Alpine Aider Trango 26503: Alpine Aider 12 kN Trango 26503: Alpine Aider 12 kN