The mechanical device T.O.S. (Total Opening System) allows the opening of the doorwings, even during its normal sliding operation and allows their folding freeing the passage, thanks to a manual pressure operate by the users in case of emergency. TOS disposal is used with special PONZI profiles section of 50 mm, while the redundant RID system is easy compatible with all Ponzi profile sections of 20 mm, 30 mm and with all glass doorwings. The standard dimensions recomended of the CURVED TOS clear opening passage is 1380 mm, with height from 2200 mm to 2500 mm.