Has holes during the again for ventilation. It essentially is crafted within the fridge slide, and would bolt on to the vertical drawers. Fridge slide is not integrated, we can do waeco, ORS or the drop slides. Click on Photograph For additional aspects on slides. Sehr freundlicher und kompetenter Company http://cars61581.blogzet.com/the-best-side-of-4wd-storage-systems-7508065