Telescopic aluminium ladders. It can be use as an extended, variable level position, and double ladder. Anti-slip knurled rung, wide base with oversize PVC feet for maximum grip. Quick-positioning hinges. Capacity 150 kg. Complies with UNI EN 14183 Legislative Decree 81/2008 Art. 113 and Legislative Decree 206/2005 Art 2-consumers