The Grivel Trigger can be attached to the shaft of nearly any ice axe for added support while climbing. This highly adjustable attachment allows easy matching for mixed climbing, a place to choke up on your tool and protection for your knuckles from bashing into the ice Warning: * The Trigger has been designed only as a support for the climber's hand. * The Trigger must never be used for belaying either the climber or partner. * The Trigger must never be used for manoeuvres with ropes. Weight: 32 g Fits large axe shafts max 20 x 30 mm