Two-axes roller shutters are a new high-quality PEI application: it is a roll-up roller that protects multiple sides, both vertically and horizontally. It is rolled up on a PEI winding mechanism and unwound by pushing with motor and side chains integrated and fixed to the shutter on two axes creating a rack effect. The roller shutters for two axes can be walked upon with higher performance than the J. Internal lighting system on request. It is possible to create portholes in the versions:-transparent;-darkened due to welding;-environment;-darkened due to laser environment (after prior communication of the type of system and radiant source);-Winding diameter: Ø 150 mm; -Material: Silver anodised aluminium; -It can be walked upon with higher performance than J; -Impact resistance (breakthrough tests)