1 x Rectangular junction box with plain sides, allowing you to drill holes where needed, Internal Dimensions: (W)240 x (H)190 x (D)90mm - External Dimensions: (W)255 x (H)200 x (D)98mm, Weatherproof rated to IP56, any holes you create should be properly sealed to keep the IP rating intact, lid can hinge open if 1 side of screws are left partially screwed in, the screw holes are walled off from the inside of the box, DIN rails, steel plates etc can be mounted inside the box but are not included.