... (2M, 6steps), DLT208(2.6M, 8steps), DLT209(2.9M, 9 steps), DLT210(3.2M,10steps), DLT212(3.8M, 12steps)11. Specification ... (1pcs/ctn) 726 1768 specialty:1. When fold,You need to press 2 buttons locking lever on each rungs and close ... aluminium treads8. EN131 approval A:50cm, B:76cm, C:260CM 8 steps aluminium telescopic ladder