Aluminum telescopic ladder 1.GS EN certificate 2.1.2mm thickness of material 3.aluminum model ... telescopic ladder B: 3.8m, 3.2m, 2.9m, 2.6m, 2.0m multi-time fold single telescopic ladder (WITHOUT ... GASKET) C: 3.8m, 3.2m, 2.9m, 2.6m, 2.0m multi-time fold single telescopic ladder (WITH GASKET ... 2.0m, 1.7m+2.3m, 2.0m+2.0m, 2.0m+2.3m, 2.0m+2.6m 2.3m+2.3m, 2.3m+2.6m, 2.3m+2.9m, 2.6m+2.6m, 2.6m+2.9m, 2 ...