I Think it's something a Climber uses , to hold on to ICE or Rock

Well I think it is a BEAN BAG GUN for shooting Bean Bags not to kill then but knock them down

Well yes this is a Dagger , But ? I see something like this on the TV , and one could squeeze the Handle
and it open the Dagger Blade and there was and other Dagger under the outer blade , so you had 3 Dagger Blades

can this be that type as well ?

Roland