Three main features sum up its quality: Ø 43 mm x 1,2 mm tube in AISI-304L and AISI-316L qualities, shiny polish finishing and electropolished, different kinds of treads always fixed to the handrail with hidden screws. Non-through holes in the bottom of the handrails are made with the “Flowdrill” technology. The fact that all our ladders are supplied with all the necessary accessories for their installation.