... ,2.6m,2.9m,3.2m aluminuim portable folding telescopic ladder stairs 1.many styles 2.high load 3.high qulity ... 4.low pr 2.3m,2.6m,2.9m,3.2m aluminuim portable folding telescopic ladder stairs 1. press ... the two buttons on the top of the ladders and retrace the whold ladder at ... 2.6m,2.9m,3.2m aluminuim portable folding telescopic ladder stairs