CEE/PERILEX hollow wall device box with lid, for use in hollow walls with an installation depth of at least 61 mm and a panel thickness of 5 - 40 mm. . 2 screw domes . Device screws, clamping lugs . 3 combination pipe entries 20 and 25 mm . 3 entries for NYM cables 3 x 2.5 mm or 5 x 1.5 mm . 2 entries for NYM cables 5 x 2.5 mm or 7 x 1.5 mm . 1 entry for NYM cables 3 x 1.5 mm