Say goodbye to clutter rust and dust. The patented adjustable shelves increase storage capacity and give the user flexibility to personalize and maximize to fit their individual needs. Rust free design, means years of sanitary and reliable use. The one piece case has 4 holes for mounting the cabinet. One secured in place, your personal items are protected from debris, dust, and other unmentionables from within the wall cavity. Designed with purpose in mind, Zaca cabinets deliver daily convenience for the long haul.