2 used box blowers, in reality they are two never used blowers of the Sonic Air System brand mod. Sonic 70 used to generate a flow of air at high pressure or speed. They are equipped with a single electrical panel of the Trielettra brand from 2015 operating at 400v. dimensions: 83X66cm h107cm, panel 47X68cm h21cm one costs €850.00 but if you buy both you spend €1,550.00 excluding VAT and transport